Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Thursday, February 29, 2024

If embryos are babies, then in-vitro fertilization is immoral

Alabama and the GOP are discovering what this blog pointed out 15 years ago--if you're going to adopt a policy that embryos are full bearers of moral personhood, then you can't allow in-vitro fertilization (IVF). From my five-part debate with Vocab Malone about abortion in 2009:

Once the zygote becomes a blastocyst, it forms into an outer layer of cells, which later becomes the placenta, and an inner cell mass of pluripotent embryonic stem cells, each of which is capable of differentiating into any kind of human cell. Only after this stage does the blastocyst implant in the wall of the uterus, about a week after fertilization, and begin taking nutrients directly from the blood of the mother--a dependency that can itself be of moral significance, as Judith Jarvis Thomson's violinist argument shows. As already mentioned above, a great many fertilized ova do not reach this stage. Further, the percentages of implant failure are higher for in vitro fertilization (IVF), a procedure which Vocab's criteria would have to declare unethical, even though it is the only way that many couples can have their own biological offspring.

I made the same point earlier in a comment on a podcast interview with atheist anti-abortion advocate Jen Roth (comments are no longer present but I reiterated it in response to Malone):

Was Jen Roth ultimately arguing that personhood is something that a human organism has for its entire lifecycle? At what starting point? Conception, implantation, or something else?

I find it completely implausible that an organism at a life stage with no capacity for perception, let alone reason, counts as a person. Nor that a particular genetic code is either necessary or sufficient for personhood.

I think every point that she made was brought up in a debate I had with a Christian blogger on the topic of abortion, who similarly argued for an equation between personhood and human organism. I wonder if she has any better rejoinders. Does she think that IVF and therapeutic cloning are immoral? IUDs?

The naive anti-abortion position is philosophically and scientifically unsupportable and leads to bad public policy, and today's GOP consists of a majority struggling to avoid it and a minority that is full-steam ahead and prepared to ban IVF and contraception.

The full debate between Vocab Malone and myself was spread across our respective blogs.  My contributions were:

Vocab Malone on abortion and personhood, part 1 (December 11, 2009)

Vocab Malone on abortion and personhood, part 2 (December 13, 2009)

Vocab Malone on abortion and personhood, part 3 (December 16, 2009)

Vocab Malone on abortion and personhood, part 4 (December 18, 2009)

Vocab Malone on abortion and personhood, part 5 (December 19, 2009)


And, finally, perhaps most apt to the current situation, was this exchange from the following year:

Does Vocab Malone understand the implications of his own position? (November 15, 2010)

Vocab's response is that he does think IVF is immoral, except perhaps for some hypothetical version he doesn't describe, that perhaps involves adopting all the "snowflake babies" and removing and reimplanting excessive multiple births into surrogates. (But that still doesn't address the implantation failure rate!)

Wednesday, December 21, 2022

ChatGPT on the Mars Effect

 ChatGPT gets a lot of things wrong here. The Zelen Test is a test that expected to find that the Mars effect correlations in Gauquelin's data were due to the nycthemeral curve, a variation in the likelihood of birth at particular times of the day, but the test showed the opposite. (There is also a more generic Zelen test in statistics that is the source of some of what ChatGPT says here.) It did not debunk the Mars effect, it showed that any correlation must be due to something else. Dennis Rawlins was an opponent of the test because he thought there was a statistical artifact in the data that was a result of sampling bias or other cause, and expected this outcome. He fiercely argued against any idea that the Mars effect was a real "cosmobiological" phenomenon. The bibliography of Dennis Rawlins-authored articles is complete fiction, none of those articles exist. Here's the chat, with my prompts in red:

what is the cause of the Mars Effect

The "Mars effect" refers to the supposed correlation between the position of the planet Mars in the sky at the time of a person's birth and their success or greatness. The idea of the Mars effect was popularized by French astrologer Michel Gauquelin in the 1950s and 1960s, who claimed to have found statistical evidence supporting the idea that people born when Mars was prominent in the sky were more likely to be successful or accomplished. However, subsequent research has failed to replicate Gauquelin's findings and the Mars effect has been widely debunked as a statistical artifact. There is no scientific basis for the idea that the position of Mars at the time of a person's birth has any influence on their characteristics or achievements.

did the Zelen Test identify the cause of the Mars Effect?

The Zelen test is a statistical procedure that was developed by Marvin Zelen in the 1970s to evaluate the validity of claims of unusual patterns or correlations in data. The Zelen test is based on the idea of "randomization," which involves randomly reassigning the values in a data set to different units in order to test whether a purported correlation or pattern is genuine or simply a statistical artifact.

The Zelen test was used by researchers to evaluate the validity of the Mars effect, and it was found that the apparent correlation between the position of Mars at the time of birth and success or greatness was not statistically significant after the data were randomly reassigned. This suggests that the Mars effect is a statistical artifact and not a genuine phenomenon.

I thought the Zelen Test was designed to show that the Mars effect was the result of the nycthemeral cycle, and it did not demonstrate that.

I apologize for the misunderstanding. You are correct that the Zelen test was not designed to specifically evaluate the Mars effect or the role of the nycthemeral cycle in the Mars effect. Rather, the Zelen test is a general statistical procedure that can be used to evaluate the validity of any claimed pattern or correlation in data.

In the case of the Mars effect, the Zelen test and other statistical techniques have been used to evaluate the validity of the claimed correlation between the position of Mars at the time of birth and success or greatness. These studies have consistently found that the Mars effect is not a statistically significant phenomenon and that there is no scientific basis for the idea that the position of Mars at the time of birth has any influence on a person's characteristics or achievements.

The nycthemeral cycle is the 24-hour cycle of day and night that is caused by the rotation of the Earth on its axis. Some proponents of the Mars effect have suggested that the apparent correlation between the position of Mars at the time of birth and success or greatness may be influenced by the nycthemeral cycle, but this idea has not been supported by empirical evidence.

Didn't Suitbert Ertel show that the CSICOP test of US champions showed a Mars Effect when the athletes were graded by eminence?

Suitbert Ertel is a German researcher who has written extensively on astrology and the Mars effect. In the 1990s, Ertel published a study in which he claimed to have found evidence of a Mars effect among a sample of United States champions in various fields, using a statistical analysis that he developed called the "eminent sample test."

Ertel's study was criticized by other researchers for its methodology and the lack of statistical rigor in the analysis. In particular, Ertel's use of the eminent sample test has been criticized for being based on arbitrary definitions of what constitutes "eminence" and for not taking into account other important variables that could influence the outcome.

Overall, the evidence for the Mars effect is weak and inconsistent, and the idea has been widely debunked by the scientific community. There is no scientific basis for the claim that the position of Mars at the time of birth has any influence on a person's characteristics or achievements.

did Dennis Rawlins criticize CSICOP for how it handled the Mars Effect?

Yes, Dennis Rawlins is a researcher who has criticized the Committee for Skeptical Inquiry (CSICOP), a organization that promotes scientific skepticism and critical thinking, for its handling of the Mars effect.

In the 1980s, CSICOP conducted a study of the Mars effect using a sample of prominent athletes and found no evidence of a correlation between the position of Mars at the time of birth and success or greatness. Rawlins, who was a member of CSICOP at the time, disputed the findings of the study and claimed that the organization had not properly addressed the evidence in favor of the Mars effect.

Rawlins has also published a number of articles and studies in which he argues that the Mars effect is a real phenomenon and that it has been unfairly dismissed by the scientific community. However, his claims have not been supported by the weight of scientific evidence, and the Mars effect remains widely debunked as a statistical artifact.

Can you tell me which articles Rawlins authored that argue that the Mars effect is a real phenomenon? I don't think that he has argued that.

I apologize for the mistake in my previous response. You are correct that Dennis Rawlins has not argued that the Mars effect is a real phenomenon. Rather, Rawlins has focused on criticizing the methodology and statistical analysis used in studies that have found no evidence of the Mars effect, and he has suggested that these studies may have missed genuine correlations due to various technical and statistical issues.

Rawlins has published a number of articles on the Mars effect, including:

"The Mars Effect: A Test of Astrology" (1981)
"The Mars Effect: A Rejoinder" (1982)
"The Mars Effect: A Reply to Ertel" (1987)

In these articles, Rawlins presents his critique of the studies that have found no evidence of the Mars effect and suggests that further research is needed to fully understand the phenomenon. However, his claims have not been supported by the weight of scientific evidence, and the Mars effect remains widely debunked as a statistical artifact.


Friday, January 01, 2021

Books read in 2020

Not much blogging going on here still, but here's my annual list of books read for 2020.
  • Nicholson Baker, Baseless: My Search for Secrets in the Ruins of the Freedom of Information Act
  • John Bolton, The Room Where It Happened: A White House Memoir
  • Ben Buchanan, The Hacker and the State: Cyber Attacks and the New Normal of Geopolitics
  • Susannah Cahalan, The Great Pretender: The Undercover Mission That Changed Our Understanding of Madness
  • Michael Cohen, Disloyal: The True Story of the Former Personal Attorney to President Donald J. Trump
  • Myke Cole, Legion versus Phalanx: The Epic Struggle for Infantry Supremacy in the Ancient World
  • Libby Copeland, The Lost Family: How DNA Testing Is Upending Who We Are
  • Barton Gellman, Dark Mirror: Edward Snowden and the Surveillance State
  • Fiona Hill and Clifford G. Gaddy, Mr. Putin: Operative in the Kremlin (2012)
  • James W. Johnson, Arizona Politicians: The Noble and the Notorious (2002)
  • Gene Kim, The Unicorn Project: A Novel about Developers, Digital Disruption, and Thriving in the Age of Data
  • Maria Konnikova, The Biggest Bluff: How I Learned to Pay Attention, Master Myself, and Win
  • Talia Lavin, Culture Warlords: My Journey Into the Dark Web of White Supremacy
  • Carol D. Leonnig and Philip Rucker, A Very Stable Genius: Donald J. Trump's Testing of America
  • Ben Macintyre, The Spy and the Traitor: The Greatest Espionage Story of the Cold War (2018)
  • Nancy MacLean, Democracy in Chains: The Deep History of the Radical Right's Stealth Plan for America (2017)
  • H. Keith Melton and Robert Wallace, with Henry R. Schlesinger, Spy Sites of New York City: A Guide to the Region's Secret History (2020)
  • Jefferson Morley, Morley v. CIA: My Unfinished JFK Investigation
  • Bastian Obermayer and Frederik Obermaier, The Panama Papers: Breaking the Story of How the Rich & Powerful Hide Their Money
  • Thomas RidActive Measures: The Secret History of Disinformation and Political Warfare
  • Brad Smith and Carol Anne Browne, Tools and Weapons: The Promise and Peril of the Digital Age
  • Mary Trump, Too Much and Never Enough: How My Family Created the World's Most Dangerous Man
  • Robert Wallace and H. Keith Melton with Henry R. Schesinger, Spy Sites of Washington, DC: A Guide to the Capital Region's Secret History (2017)
  • Anna Wiener, Uncanny Valley: A Memoir
  • Isabel Wilkerson, Caste: The Origins of Our Discontents
    Top for 2020: Copeland, Macintyre, Cahalan, Smith and Browne, Buchanan, Obermayer and Obermaier, Gellman, Rid.

    I started the following books I expect to finish in 2021 (yes, I also said that about LeFeber and Wilson last year--I'm well in to LaFeber's book and thought I might finish before the end of the year, but had only read Wilson's intro so it's barely started):

    William Dalrymple, The Anarchy: The East India Company, Corporate Violence, and the Pillage of an Empire
    Walter LaFeber, Inevitable Revolutions: The United States in Central America (2nd edition)
    Peter H. Wilson, The Holy Roman Empire: A Thousand Years of Europe's History

    I've also pre-ordered and am looking forward to reading:

    Nicole Perlroth, This Is How They Tell Me the World Ends: The Cyberweapon Arms Race (due to be published on February 9)

    (Previously: 201920182017201620152014201320122011201020092008200720062005.)

    Monday, July 20, 2015

    Al Seckel exposed

    "I believe that we are rapidly transitioning from an Age of Information to an Age of Misinformation, and in many cases, outright disinformation." -- Al Seckel, in an interview published on Jeffrey Epstein's website, "Jeffrey Epstein Talks Perception with Al Seckel"

    Mark Oppenheimer's long-awaited exposé on Al Seckel, "The Illusionist," has now been published and I urge all skeptics to read it. Seckel, the former head of the Southern California Skeptics and a CSICOP Scientific and Technical Consultant who was listed as a "physicist" in every issue of the Skeptical Inquirer from vol. 11, no. 2 (Winter 1987-88) to vol. 15, no. 2 (Winter 1991) despite having no degree in physics, has long been known among skeptical insiders as a person who was misrepresenting himself and taking advantage of others. Most have remained silent over fear of litigation, which Seckel has engaged in successfully in the past.

    An example of a legal threat from Seckel is this email he sent to me on May 27, 2014:
    Dear Jim,
    News has once again reached me that you are acting as Tom McIver's proxy in
    spreading misinformation and disinformation about me. Please be aware that
    I sued McIver in a Court of Law for Defamation and Slander, and after a
    very lengthy discovery process, which involved showing that he fabricated
    letters from my old professors (who provided notarized statements that they
    did not ever state nor write the letters that McIver circulated, and the
    various treasures who were in control of the financial books of the
    skeptics, also came forth and testified that no money was taken, and McIver
    was unable to prove any of his allegations. The presiding Judge stated that
    this was the "worst case of slander and defamation" that he had ever seen.
    Nevertheless, even with such a Court Order he is persisting, and using (and
    I mean the term "using") you to further propagate erroneous misinformation.
    Lately, he has been making his defamatory comments again various people,
    and posting links to a news release article by the Courthouse News (a press
    release service) that reports the allegations set forth in complaints. Just
    because something is "alleged" does not mean it is True. It has to be
    proven in a Court of Law. In this case, after a lengthy discovery process
    (and I keep excellent records) the opposite of what was alleged was
    discovered, and the opposing counsel "amicably" dismissed their charges
    against me. The case was officially dismissed. In fact, the opposing
    counsel has been active in trying to get the Courthouse News to actively
    remove the entire article, and not just add a footnote at the end.
    I note that you have been trying to add this link to my wikipedia page. I
    have never met you, and am not interested in fighting with you. I am
    attaching the official Court document that this case was filed for
    dismissal by the opposing counsel. You can verify yourself that this is an
    accurate document with the Court. So, once again, McIver has used you.
    My attorneys are now preparing a Criminal Complaint against McIver for so
    openly violating the Court Order (it is now a criminal offense), and will
    once again open the floodgates of a slander and defamation lawsuit against
    him and his family, and anyone else, who aids him willing in this process.
    This time he will not have his insurance company cover his defense. This
    time that axe will come down hard on him.
    For now, I will just think you are victim, but please remove any and all
    references to me on any of your websites, and that will be the end of it.
    You don't want to be caught in the crossfire.
    Yours sincerely,
    Al Seckel
    --
    Al Seckel
    Cognitive neuroscientist, author, speaker
    Contrary to what Seckel writes, we have, in fact, met--I believe it was during the CSICOP conference, April 3-4, 1987, in Pasadena, California.  I am not an agent of Tom McIver, the anthropologist, librarian, and author of the wonderful reference book cataloging anti-evolution materials, Anti-Evolution, who Seckel sued for defamation in 2007, in a case that was settled out of court (see Oppenheimer's article). I have never met Tom McIver, though I hope I will be able to do so someday--he seems to me to be a man of good character, integrity, and honesty.

    The news release Seckel mentions is regarding a lawsuit filed by Ensign Consulting Ltd. in 2011 against Seckel charging him with fraud, which is summarized online on the Courthouse News Service website. I wrote a brief account of the case based on that news article on Seckel's Wikipedia page in an edit on March 13, 2011, but it was deleted by another editor in less than an hour.  Seckel is correct that just because something is alleged does not mean that it is true; my summary was clear that these were accusations made in a legal filing.

    Seckel and his wife, Isabel Maxwell (daughter of the deceased British-Czech media mogul, Robert Maxwell), rather than fighting the suit or showing up for depositions, filed for bankruptcy.  Ensign filed a motion in their bankruptcy case on December 2, 2011, repeating the fraud allegations.  But as Seckel notes, Ensign did dismiss their case in 2014 prior to his sending me the above email.

    So why should anyone care?  Who is Al Seckel, and what was he worried that I might be saying about him? This is mostly answered by the Oppenheimer article, but there is quite a bit more that could be said, and more than what I will say here to complement "The Illusionist."

    Al Seckel was the founder and executive director of the Southern California Skeptics, a Los Angeles area skeptics group that met at Caltech.  This was one of the earliest local skeptical groups, with a large membership and prominent scientists on its advisory board.  Seckel has published numerous works including editing two collections of Bertrand Russell's writings for Prometheus Books (both reviewed negatively in the Journal of Bertrand Russell Studies, see here and here).  He has given a TED talk on optical illusions and authored a book with the interesting title, Masters of Deception, which has a forward by Douglas R. Hofstadter.  Seckel was an undergraduate at Cornell University, and developed an association with a couple of cognitive psychology labs at Caltech--in 1998 the New York Times referred to him as a "research associate at the Shimojo Psychophysics Laboratory." His author bios have described him as author of the monthly Neuroquest column at Discover magazine ("About the Author" on Masters of Deception; Seckel has never written that column), as "a physicist and molecular biologist" (first page of Seckel's contribution, "A New Age of Obfuscation and Manipulation" in Robert Basil, editor, Not Necessarily the New Age, 1988, Prometheus Books, pp. 386-395; Seckel is neither a physicist nor a molecular biologist), and, in his TED talk bio, as having left Caltech to continue his work "in spatial imagery with psychology researchers as Harvard" (see Oppenheimer's exchanges with Kosslyn, who has never met or spoken with him and Ganis, who says he has exchanged email with him but not worked with him).

    At Cornell, Seckel associated with L. Pearce Williams, a professor of history of science, who had interesting things to say when McIver asked him about their relationship. While in at least one conference bio, Seckel is listed as having been Carl Sagan's teaching assistant, I do not believe that was the case. The Cornell registrar reported in 1991 in response to a query from Pat Linse that Seckel only attended for two semesters and a summer session, though a few places on the web list him as a Cornell alumnus.

    Seckel used to hang out at Caltech with Richard Feynman. As the late Helen Tuck, Feyman's administrative assistant, wrote in 1991, Seckel "latched on to Feynman like a leach [sic]." Tuck wrote that she became suspicious of Seckel, and contacted Cornell to find that he did not have a degree from that institution. You can see her full letter, written in response to a query from Tom McIver, here.

    As the head of the Southern California Skeptics, Seckel managed to get a column in the Los Angeles Times, titled "Skeptical Eye." Most of his columns were at least partially plagiarized from the work of others, including his column on Sunny the counting dalmation (plagiarized from Robert Sheaffer), his column on tabloid psychics' predictions for 1987 (also plagiarized from Sheaffer), and his column about Martin Reiser's tests of psychic detectives (plagiarized directly from Reiser's work). When Seckel plagiarized Sheaffer, it was brought to the attention of Kent Harker, editor of the Bay Area Skeptics Information Sheet (BASIS), who contacted Seckel about it. Seckel apparently told Harker that Sheaffer had given his permission to allow publication of his work under Seckel's name, which Sheaffer denied when Harker asked. This led to Harker writing to Seckel in 1988 to tell him about Sheaffer's denial, and inform him that he, Seckel, was no longer welcome to reprint any material from BASIS in LASER, the Southern California Skeptics' newsletter. While most skeptical groups gave each other blanket permission to reprint each others' material with attribution, Harker explicitly retracted this permission for Seckel.

    This is, I think, a good case study in how the problem of "affiliate fraud"--being taken in by deception by a member of a group you self-identify with--can be possible for skeptics, scientists, and other educated people, just as it is for the more commonly publicized cases of affiliate fraud within religious organizations.

    This just scratches the surface of the Seckel story. I hope that those who have been fearful of litigation from Seckel will realize that, given the Oppenheimer story, now is an opportune time for multiple people to come forward and offer each other mutual support that was unhappily unavailable for Tom McIver eight years ago.

    (BTW, one apparent error in the Oppenheimer piece--I am unaware of Richard Feynman lending his name for use by a skeptical group. He was never, for example, a CSICOP Fellow, though I'm sure they asked him just as they asked Murray Gell-Mann, who has been listed as a CSICOP Fellow since Skeptical Inquirer vol. 9, no. 3, Spring 1985.)

    "Oh, like everyone else, I used to parrot, and on occasion, still do." -- Al Seckel (interview with Jeffrey Epstein)

    Corrected 22 July 2015--original mistakenly said Maxwell was Australian.

    Update 22 September 2015--an obituary has been published for Al Seckel, stating that he died in France on an unspecified date earlier this year, but there are as yet no online French death records nor French news stories reporting his death. The obituary largely mirrors content put up on alseckel.net, a domain that was registered on September 18 by a user using Perfect Privacy LLC (domaindiscreet.com) to hide their information. (That in itself is not suspicious, it is generally a good practice for individuals who own domain names to protect their privacy with such mechanisms and I do it myself.)

    Update 24 September 2015: French police, via the U.S. consulate, confirmed the death of Al Seckel on July 1, 2015. His body was found at the bottom of a cliff in the village of Saint-Cirq-Lapopie.

    Update 21 December 2015: A timeline of Al Seckel's activities may be found here.

    Update 14 April 2022: Al Seckel's death has been declared a suicide.

    Friday, August 10, 2012

    The myth of fingerprints

    I've been reading Ross Anderson's epic tome, Security Engineering: A Guide to Building Dependable Distributed Systems (2nd edition, 2008, Wiley), and have just gotten into the chapter on biometrics (ch. 15).  Section 15.5.2, on Crime Scene Forensics, points out three major criminal cases where fingerprint matches have been in error, including the Brandon Mayfield case which I wrote about at this blog back in 2007.  Anderson points out that law enforcement agencies have claimed to juries "that forensic results are error-free when FBI proficiency exams have long had an error rate of about one percent, and misleading contextual information can push this up to ten percent or more" (pp. 470-471).  It's probability at work:
    Even if the probability of a false match on sixteen points [the UK standard, the U.S. has no minimum] were one in ten billion (10-10) as claimed by police optimists, once many prints are compared against each other, probability theory starts to bite. A system that worked fine in the old days as a crime scene print would be compared manually with the records of a hundred and fifty-seven known local burglars, breaks down once thousands of prints are compared every year with an online database of millions. (p. 471)
    One of the other two cases Anderson discusses is that of Scottish policewoman Shirley McKie, who was prosecuted on the basis of a 16-point fingerprint match found at a murder scene and could not find any fingerprint examiner in Britain to defend her.  She found two Americans who testified on her behalf that it was not a match (Anderson shows the crime scene print and her inked print on p. 469; the crime scene print is heavily smudged).  McKie's own fellow officers tried to convince her to give false testimony about her presence at the crime scene, which she refused to do.  She was acquitted, but lost her job and was unable to get reinstated.

    The third case Anderson mentions is Stephan Cowans, who was convicted of shooting a police officer after a robbery in 1997.  He was convicted, but argued it was not his fingerprint.  After Cowans was able to get crime scene evidence tested for DNA which was found not to match, a re-examination of the fingerprint also found that there was no match.  So six years after his conviction, he was acquitted on appeal.

    Further evidence of the errors which can arise from fingerprint examination comes from two studies by psychologist Itiel Dror which Anderson describes.  In one study, five fingerprint examiners were each shown a pair of prints, allegedly the falsely matched prints from the Mayfield case, and asked to point out the errors.  Three examiners gave explanations for the non-matches, one said that they did, in fact, match, and one was uncertain.  In fact, the pairs of prints were each purported matches by the corresponding examiner from a recent criminal case, so only one of the five was still certain that a match testified to in court was in fact a match upon re-examination with a skeptical mindset.  In a second study, Dror gave each of six experts eight prints that they had matched in previous cases, and four of the six gave inconsistent results.

    Anderson points out that belief in the infallibility of fingerprint evidence has the effect of promoting carelessness by examiners, not giving proper critical scrutiny to the method or its assumptions in changing conditions (e.g., the increase in the number of fingerprints to match against in the age of the computer), and increasing the negative consequences of cases of failure.  In the McKie case, Anderson points out, "there appears to have arisen a hierarchical risk-averse culture in which no one wanted to rock the boat, so examiners were predisposed to confirm identifications made by colleagues (especially senior colleagues).  This risk aversion backfired when four of them were tried for perjury." (p. 472)

    Itiel Dror's two papers (references from Anderson, p. 923):

    IE Dror, D Charlton, AE Péron, "Contextual information renders experts vulnerable to making erroneous identifications," in Forensic Science International 156 (2006) 74-78

    IE Dror, D Charlton, "Why Experts Make Errors," in Journal of Forensic Identification v 56 no 4 (2006) pp 600-616; at http://users.ecs.soton.ac.uk/id/biometrics.html

    (Previously, which includes reference to Simon Cole's book on fingerprint evidence which shares the title of this post.)

    Saturday, February 11, 2012

    Miscellanea

    I recently had a few opportunities on a plane to catch up on some reading and podcasts.  A few of the more interesting things I came across:

    A bunch of interesting articles in The Economist for the past few weeks:

    January 28-February 3, 2012:

    "Saving Lives: Scattered Saviors" -- harnessing social media and mobile devices to deploy first aid faster than an ambulance can arrive (United Hatzalah in Israel believes it will be able to have first responders on the scene within 90 seconds).

    "China's new tribes: Ant tribes and mortgage slaves" -- a new vocabulary in Mandarin describing emerging social groups in China.  (Reminds me of Cory Doctorow's Eastern Standard Tribe.)

    "Affinity fraud: Fleecing the flock" -- the rise in affinity fraud, especially religious affinity fraud, during the economic downturn, and why it works so effectively.  (Also see my blog post from 2008 and another on the same topic from the Secular Outpost in 2006.)  Briefly mentioned is the Baptist Foundation of Arizona affinity fraud, which victimized my step-grandfather by stealing most of his retirement savings.

    "Visible-light communication: Tripping the light fantastic" -- an update on where we stand with Li-Fi (using LED lighting as a mechanism for data transmission).

    February 4-10, 2012:

    "Synaesthesia: Smells like Beethoven" -- A new study finds correlations between odors and sounds, even among people who are not synaesthetes.

    "Scientific publishing: The price of information" -- On the boycott of Elsevier by scientists tired of excessive charges for journals, and the competition from arXiv and PLoS.

    "Biomimetics: Not a scratch" -- lessons from the microstructure of scorpion armor for reducing wear rates on aircraft engines and helicopter rotors.

    Podcasts:

    Philosophy Bites interview with Alain de Botton on Atheism 2.0: de Botton, author of Religion for Atheists, argues that there are good and useful components of religion which can be secularized, and that it is as legitimate to borrow things we like from religion while discarding what we don't as it is to prefer different kinds of art and music.  (Also see the Token Skeptic interview with de Botton and watch his TED talk.)  I think his picture of religion, like that of Scott Atran (In Gods We Trust) and Pascal Boyer (Religion Explained) makes more sense than the way some atheists talk about it as though fundamentalist religion is the essence of religion, and should be discarded completely (which doesn't seem likely to happen as long as we live in social communities).

    Rationally Speaking interview with Joseph Heath: Heath, author of Economics without Illusions: Debunking the Myths of Modern Capitalism (Canadian title: Filthy Lucre: Economics for People who Hate Capitalism, which the publishers decided wouldn't sell in the U.S.), talks about misunderstandings of economics on both the right and the left.  (Also see this BloggingHeads TV interview of Heath by Will Wilkinson, who writes: "The section on right-wing fallacies is largely on the money and a great challenge for rote libertarians and conservatives. The section of left-wing fallacies is terrific, and it would be terrific if more folks on the left were anywhere near as economically literate as Heath.")  Heath's "Rationally Speaking pick" also sounds fascinating, Janos Kornai's The Socialist System: The Political Economy of Communism, which explains the creative but ultimately futile ways that human beings tried to replace markets with planning and design.)

    Wednesday, September 28, 2011

    Skeptics and Bayesian epistemology

    A few prominent skeptics have been arguing that science and medicine should rely upon Bayesian epistemology.  Massimo Pigliucci, in his book Nonsense on Stilts, on the Rationally Speaking podcast, and in his column in the Skeptical Inquirer, has suggested that scientists should best proceed with a Bayesian approach to updating their beliefs.  Steven Novella and Kimball Atwood at the Science-Based Medicine blog (and at the Science-Based Medicine workshops at The Amazing Meeting) have similarly argued that what distinguishes Science-Based Medicine from Evidence-Based Medicine is the use of a Bayesian approach in accounting for the prior plausibility of theories is superior to simply relying upon the outcomes of randomized controlled trials to determine what's a reasonable medical treatment.  And, in the atheist community, Richard Carrier has argued for a Bayesian approach to history, and in particular for assessing claims of Christianity (though in the linked-to case, this turned out to be problematic and error-ridden).

    It's worth observing that Bayesian epistemology has some serious unresolved problems, including among them the problem of prior probabilities and the problem of considering new evidence to have a probability of 1 [in simple conditionalization].  The former problem is that the prior assessment of the probability of a hypothesis plays a huge factor in the outcome of whether a hypothesis is accepted, and whether that prior probability is based on subjective probability, "gut feel," old evidence, or arbitrarily selected to be 0.5 can produce different outcomes and doesn't necessarily lead to concurrence even over a large amount of agreement on evidence. So, for example, Stephen Unwin has argued using Bayes' theorem for the existence of God (starting with a prior probability of 0.5), and there was a lengthy debate between William Jefferys and York Dobyns in the Journal of Scientific Exploration about what the Bayesian approach yields regarding the reality of psi which didn't yield agreement. The latter problem, of new evidence, is that a Bayesian approach considers new evidence to have a probability of 1, but evidence can itself be uncertain.

    And there are other problems as well--a Bayesian approach to epistemology seems to give special privilege to classical logic, not properly account for old evidence [(or its reduction in probability due to new evidence)] or the introduction of new theories, and not be a proper standard for judgment of rational belief change of human beings for the same reason on-the-spot act utilitarian calculations aren't a proper standard for human moral decision making--it's not a method that is practically psychologically realizable.

    The Bayesian approach has certainly been historically useful, as Desiree Schell's interview with Sharon Bertsch McGrane, author of The Theory That Would Not Die: How Bayes’ Rule Cracked the Enigma Code, Hunted Down Russian Submarines, and Emerged Triumphant from Two Centuries of Controversy, demonstrates.  But before concluding that Bayesianism is the objective rational way for individuals or groups to determine what's true, it's worth taking a look at the problems philosophers have pointed out for making it the central thesis of epistemology.  (Also see John L. Pollock and Joseph Cruz, Contemporary Theories of Knowledge, 2nd edition, Rowman & Littlefield, 1999, which includes a critique of Bayesian epistemology.)

    UPDATE (August 6, 2013): Just came across this paper by Brandon Fitelson (PDF) defending Bayesian epistemology against some of Pollock's critiques (in Pollock's Nomic Probability book, which I've read, and in his later Thinking About Acting, which I've not read).  A critique of how Bayesianism (and not really Bayesian epistemology in the sense defended by Fitelson) is being used by skeptics is here.

    Thursday, September 01, 2011

    Scott Atran on violent extremism and sacred values

    Chris Mooney has a very interesting interview with anthropologist Scott Atran on the Point of Inquiry podcast, in which Atran argues that terrorism is not the product of top-down, radical religious extremist organizations recruiting the poor and ignorant, but of groups of educated (and often educated in secular institutions) individuals who become disaffected, isolated, and radicalized.  Much U.S. counterterrorism and "homeland security" activity assumes the former and thus is attacking the wrong problem.

    He also argues that reason and rationalism are the wrong tools for attacking religion, defends a view of religion as a natural by-product of the sorts of minds we've evolved to have (very similar to Pascal Boyer's account, which I think is largely correct), and throws in a few digs at the new atheists for making claims about religion that are contrary to empirical evidence.

    Some of the commenters at the Point of Inquiry/Center for Inquiry forums site seem to be under the misapprehension that Atran is a post-modernist.  I don't see it--he's not making the argument that reason doesn't work to find out things about the world, he's making the argument that the tools of science and reason are human constructions that work well at finding things out about the world, but not so much for persuading people of things, or as the basis for long-term institutions for the sort of creatures we are.  Atran shows up in the comments to elaborate on his positions and respond to criticism.

    My compliments to Chris Mooney for having consistently high-quality, interesting guests who are not the same voices we always hear at skeptical conferences.

    Sunday, July 10, 2011

    Desert Air podcast

    A group of Tucson atheists and skeptics have started the Desert Air podcast, available via iTunes.  Three episodes available so far.

    Skeptics and "backward masking"

    Below these two videos is a post I made (perhaps to the Kate Bush fans' "love-hounds" mailing list, I don't recall) back in 1986 regarding a 1985 Christian "rock music seminar" about alleged Satanic backwards messages in rock music.  I was familiar with the claims of supposed "backwards masking" where the sounds of ordinary lyrics were interpreted to have different messages when reversed, as well as actual examples of recordings that were put into songs in reverse.  The former seemed to me to be examples of subjective validation, and I tested it myself by closing my eyes and covering my ears when the presenter gave their claims about what we were supposed to hear prior to playing the samples.  Subsequently, this became one of the first tests the Phoenix Skeptics conducted as a student group at Arizona State University in October 1985.  We invited the speaker to give his demonstrations before our group, but required him to play the samples first without explanation and have everyone write down what they heard.  The result was that on the first pass, those unfamiliar with the samples had a wide variety of responses; on a second pass, once the expectation was set, everybody heard what they were supposed to hear.

    It's interesting that this demonstration, the key example of which was a sample from Led Zeppelin's "Stairway to Heaven," made a comeback two decades later--being used by skeptics to show the power of suggestion and expectation, as these two videos from Simon Singh and Michael Shermer demonstrate.

    Simon Singh, 2006:


    Michael Shermer, 2006 TED Talk:


    Date:  Wed, 5 Feb 86 15:35 MST
    From: "James J. Lippard" 
    Subject:  Christian Death/rock seminar
    Reply-To:  Lippard@MIT-MULTICS.ARPA
    
    Yes, I've heard of Christian Death, though I haven't heard much by them.  That
    reminds me of an article I wrote in October for ASU's "Campus Weekly"
    (alternative campus newspaper) about a rock seminar I went to, and here it is.
    The article was never printed, as the newspaper folded.  (Note: There was
    originally an additional paragraph about a fourth type of backwards
    message--the kind that's at the end of the first side of "The Dreaming".)
    
          Druids were Satanists.
          Van Morrison reads Celtic literature.
          Therefore, Van Morrison's music is evil.
    
       I had hoped this kind of feeble guilt-by-association reasoning applied to
    rock music by religious fanatics had died off.  No such luck.  The above was
    typical of the reasoning presented at a seminar on rock music on October 21 by
    Christian Life.  Not only is the first premise false, the conclusion is a non
    sequitur.
    
       Things looked promising enough at first.  A quote from the Confucian
    philosopher Mencius about how the multitudes "act without clear understanding"
    was projected on the large screen in Neeb Hall before the presentation began.
    When the show finally started, the speaker gave some facts about the size of
    the music industry and its influence on society.
    
       For a while things were rational.  Since the seminar was focusing on the
    seamy side of rock, it seemed reasonable to show slides of Lou Reed shooting
    heroin on stage, Sid Vicious, Kiss, and so forth.  Still, the impression was
    given that this was representative of the majority of rock music.  Obscure
    groups such as Demon, Lucifer's Friend, and the Flesh Eaters say nothing about
    rock in general.
    
       Apparently the writers of the seminar were aware of this, because it then
    shifted to analyzing album covers of fairly popular groups.  But this analysis
    was taken to a ridiculous extreme, pulling interpretations out of a hat.  If
    an album cover had a cross on it, it was automatically blasphemous.  Any other
    religious symbols on an album along with a cross were putting down
    Christianity by calling it "just another religion."
    
    Other symbols also drew criticism.  From the following Bible verse, Luke
    10:18, it was concluded that lightning bolts are a demonic symbol:
      And He  said to them,  "I was watching  Satan fall from  heaven
         like lightning."
    
       Since all lightning bolts are evil, the lightning bolts in the logos of
    Kiss and AC/DC show that they are in league with the devil.  Interestingly, on
    the backs of many electrical appliances is a symbol which serves as a warning
    of potential shock hazard--a yellow triangle containing a lightning bolt
    exactly like the one in AC/DC's logo.  Surely this is a more obvious source
    than the Bible for AC/DC's lightning bolt, given the electrical symbolism in
    their name and many of their album titles.
    
       As the Jesuits knew, if you teach a child your ways early, he will likely
    follow them for the rest of his life.  But to conclude from this that Led
    Zeppelin is trying to influence children because there are children on the
    cover of their _Houses of the Holy_ album is absurd.
    
       In the interest of "fair play", quotes from several artists denying any
    involvement with the occult were given.  But these were shrugged off,
    including the disclaimer at the beginning of Michael Jackson's _Thriller_
    video which says, in part, "this film in no way endorses belief in the
    occult." Michael Jackson is a devout Seventh Day Adventist, so I seriously
    doubt he had any more intent in promoting the occult through _Thriller_ than
    the creators of Caspar the Friendly Ghost.
    
       Finally, the seminar got to its most entertaining subject: backwards
    messages on rock albums.  There are several types of messages commonly
    referred to as "backmasking," most of which were covered.  The first is a
    message recorded normally, then placed on an album in reverse.  The example
    given was from ELO's Face the Music album, which says "The music is
    reversible, but time is not.  Turn back, turn back..." There is little doubt
    about the content of such messages.
    
       The second type of backwards message is where words are sung backwards,
    phonetically.  On Black Oak Arkansas' live album _Raunch and Roll_, there is
    no question about what they are trying to do when the singer shouts "Natas!"
    The conference speaker seemed to imply that this message was unintentional,
    however, when he gave an example of a song by Christian Death.  The words are
    sung backwards (as seen on the lyrics sheet), but pronounced in reverse
    letter-by-letter rather than phonetically.  He seemed surprised that this
    resulted in nonsense when reversed.
    
       The third type of backwards message is where a perfectly ordinary record
    album is played in reverse to produce gibberish and creative imaginations
    supply the translations for supposed messages.  According to the speaker, this
    must occur in one of three ways.  Either they are intentional, accidental, or
    spiritual.  They can't be intentional, because creating such a message is
    unimaginably complex.  They can't be accidental, otherwise we would hear
    messages saying such things as "God is love" or "the elephant is on the back
    burner" as often as we hear messages about Satan.  Therefore, the messages
    must be spiritual (i.e., Satan caused them to occur).
    
       This completely ignores what has already been well-established as the
    source of these messages.  Someone person plays his records backwards,
    listening for evil messages, and hears something that sounds like the word
    "Satan".  He then tells his friends to listen for the message, and plays it
    for them.  Since they have been told what to hear, their mind fills in the
    difference between the noises on the album and the alleged message.
    
       This explanation was mentioned, but was dismissed out of hand because, the
    speaker claimed, the backwards messages are as clear as most rock lyrics are
    forwards.  He played the first message, in Queen's "Another One Bites the
    Dust", without telling the audience what to hear.  I heard no message, but he
    told us that we clearly heard "start to smoke marijuana".  When the tape was
    played again, I could hear it.
    
       The rest of the messages of this type played at the seminar were
    accompanied by text on the movie screen telling the audience what to listen
    for.  I closed my eyes to ignore the hints, and was unable to hear anything
    but gibberish.  The same method was used and the same results obtained by
    several other audience members I questioned after the presentation.
    
       In addition, an anti-rock program aired a few years ago on the Trinity
    Broadcasting Network stated that there were several messages on Led Zeppelin's
    "Stairway to Heaven", including "here's to my sweet Satan" and "there is power
    in Satan".  The rock conference, on the other hand, combined these two into
    one large message which began "my sweet Satan" and ended "whose power is in
    Satan".  Having heard the TBN version first, those were what I heard when they
    were played at the conference.  If the words "there is" can be mistaken for
    "whose", isn't it possible that the same is true for the rest of these
    messages?
    
       Even the transcriber of the backwards messages had problems coming up with
    words to fit the message.  The slide for Rush's live version of "Anthem"
    played backwards read:
      Oh, Satan, you--you are the one who is shining, walls of Satan,
         walls of (sacrifice?)  I know.
    
       As any ventriloquist knows, many sounds can be mistaken for many other
    sounds.  An m for an n, a t for a d, a c, a z, or a th for an s.  Given that
    the most frequent letters in the English language are ETAOINSHRDLU, it is no
    surprise that something sounding like "Satan" is quite common.
    
       With enough effort, evil symbolism and backwards messages can be found
    anywhere.  Try visiting a record store and finding satanic symbols on
    Christian album covers, or listening to some Christian albums backwards.  I'm
    sure much can be found with little difficulty.
    
       It is true that most rock is not Christian.  It is even true that much of
    it conflicts with the Christian faith in some way.  But to bury these points
    in a mire of fuzzy logic and fanaticism by engaging in a witch hunt is
    counter-productive.  Before the conference, I commented to a friend that if
    "Stairway to Heaven" was played backwards, the presenters would have destroyed
    any credibility they had.  That, unfortunately, was the case.
    
    
        Jim (Lippard at MIT-MULTICS.ARPA)
    

    Additional information:

    ReligiousTolerance.org has a good overview with scientific references on the subject.

    Friday, April 29, 2011

    Salt therapy: Where's the evidence?

    Today there was a Groupon offer for salt therapy from the "Salt Chalet Arizona."  Sufferers of respiratory illnesses are offered the chance to sit in a room containing salt for claimed relief of symptoms.  I posted the following at the Salt Chalet Arizona's blog, which is awaiting moderation:
    “Although there have been few clinical studies” — are there any that provide any empirical support for the claims made on this site? It seems to me that solid empirical support for safety and efficacy are absolutely essential requirements for any medical claim. What is the mechanism of relief, is that relief more than would be expected from a placebo effect, does it last, and are there any harmful short or long term consequences?
    To its credit, the blog's repost of a newspaper article about a similar service offered via a Pakistani salt mine includes the following skeptical passage:
    But Shahid Abbas, a doctor who runs the private Allergy and Asthma Centre in Islamabad, said that although an asthma or allergy sufferer may get temporary relief, there is no quick-fix cure.

    “There is no scientific proof that a person can permanently get rid of asthma by breathing in a salt mine or in a particular environment,” he said.

    Wednesday, March 30, 2011

    Information security threat models, folk & expert

    I've written a pair of blog posts for Global Crossing's "Defense in Depth Security" blog based on recent work by Rick Wash and by multiple people at Intel including Timothy Casey about modeling the agents behind information security threats. The first post is about non-expert home computer users' "folk models" of the threats from viruses and hackers,which makes the point that seemingly irrational decisions about security may in fact be completely rational based on their conceptual understanding of the threat they believe they are combatting.  Only by changing their understanding of the threat, which requires not just information but appropriately salient information and the right incentives, are we likely to see changes in user behavior.  I point out an example of a recent news story that might help provide both elements with regard to one type of vulnerability, open wireless access points.

    The second blog post, which will appear tomorrow, is about expert models of threat agents--the Intel Threat Agent Library.  Intel created a large set of attacker personas and identified their attributes, for use in matching against vulnerabilities and prioritizing controls as part of a broader risk assessment process.

    I'm happy to discuss these further either here or at the Global Crossing blogs.

    Tuesday, November 30, 2010

    Review of CMI's "Voyage That Shook the World"

    John Lynch and I have co-authored a review of the Creation Ministries International film on Darwin which will be appearing in vol. 30 of Reports of the National Center for Science Education and which may be found on their website.

    My previous blogged review of the film is here.

    I gave a little more background on the film here.  John Lynch has said more about it here, herehere, and here, mostly about the deception used to get interviews by prominent historians.

    Saturday, November 20, 2010

    What to think vs. how to think

    While listening to a recent Token Skeptic podcast of a Dragon*Con panel on Skepticism and Education moderated by D.J. Grothe of the James Randi Educational Foundation, I was struck by his repeated references to Skepticism as a worldview (which I put in uppercase to distinguish it from skepticism as a set of methods of inquiry, an attitude or approach).  I wrote the following email to the podcast:
    I am sufficiently irritated by D.J. Grothe's repeated reference to skepticism as a "worldview" that I will probably be motivated to write a blog post about it.
    There is a growing ambiguity caused by overloading of the term "skepticism" on different things--attitudes, methods and processes, accumulated bodies of knowledge, a movement.  To date, there hasn't really been a capital-S Skepticism as a worldview since the Pyrrhonean philosophical variety.  A worldview is an all-encompassing view of the world which addresses how one should believe, how one should act, what kinds of things exist, and so forth.  It includes presuppositions not only about factual matters, but about values. 
    The skepticisms worth promoting are attitudes, methods and processes, and accumulated bodies of knowledge that are consistent with a wide variety of world views.  The methods are contextual, applied against a background of social institutions and relationships that are based on trust.  There is room in the broader skeptical movement for pluralism, a diversity of approaches that set the skepticisms in different contexts for different purposes--educational, political, philosophical, religious.  An unrestricted skepticism is corrosive and undermines all knowledge, for there is no good epistemological response to philosophical skepticism that doesn't make some assumptions.
    Trying to turn skepticism into a capital-S Skeptical worldview strikes me as misguided.
    To my mind, what's most important and useful about skepticism is that it drives the adoption of the best available tools for answering questions, providing more guidance on how to think than on what to think, and on how to recognize trustworthy sources and people to rely upon.  There's not a completely sharp line between these--knowledge about methods and their accuracy is dependent upon factual knowledge, of course.

    I think the recent exchanges about the Missouri Skepticon conference really being an atheist conference may partly have this issue behind them, though I think there are further issues there as well about the traditional scope of "scientific skepticism" being restricted to "testable claims" and the notion of methodological naturalism that I don't entirely agree with.  Skepticism is about critical thinking, inquiry, investigation, and using the best methods available to find reliable answers to questions (and promoting broader use of those tools), while atheism is about holding a particular position on a particular issue, that no gods exist.  The broader skeptical movement produces greater social benefits by promoting more critical thinking in the general public than does the narrower group of skeptical atheists who primarily argue against religion and especially the smaller subset who are so obsessed that they are immediately dismissed by the broader public as monomaniacal cranks.  The organized skeptical groups with decades of history have mainly taken pains to avoid being represented by or identified with the latter, and as a result have been represented by skeptics of a variety of religious views in events of lasting consequence. Think, for example, of the audience for Carl Sagan's "Cosmos" and his subsequent works, or of the outcome of the Kitzmiller v. Dover trial.

    In my opinion, the distinction between skepticism and atheism is an important one, and I think Skepticon does blur and confuse that distinction by using the "skeptic" name and having a single focus on religion. This doesn't mean that most of the atheists participating in that conference don't qualify as skeptics, or even that atheist groups promoting rationality on religious subjects don't count as part of the broader skeptical movement.  It just means that there is a genuine distinction to be drawn.

    (BTW, I don't think atheism is a worldview, either--it's a single feature of a worldview, and one that is less important to my mind than skepticism.)

    Previous posts on related subjects:
    "A few comments on the nature and scope of skepticism"
    "Skepticism, belief revision, and science"
    "Massimo Pigliucci on the scope of skeptical inquiry"

    Also related, a 1999 letter to the editor of Skeptical Inquirer from the leaders of many local skeptical groups (Daniel Barnett, North Texas Skeptics, Dallas, TX; David Bloomberg, Rational Examination Association of Lincoln Land, Springfield, IL; Tim Holmes, Taiwan Skeptics, Tanzu, Taiwan; Peter Huston, Inquiring Skeptics of Upper New York, Schenectady, NY; Paul Jaffe, National Capitol Area Skeptics, Washington, D.C.; Eric Krieg, Philadelphia Association for Critical Thinking, Philadelphia, PA; Scott Lilienfeld, Georgia Skeptics, Atlanta, GA; Jim Lippard, Phoenix Skeptics and Tucson Skeptical Society, Tucson, AZ; Rebecca Long, Georgia Skeptics, Atlanta, GA; Lori Marino, Georgia Skeptics, Atlanta, GA; Rick Moen, Bay Area Skeptics, Menlo Park, CA; Steven Novella, New England Skeptical Society, New Haven, CT; Bela Scheiber, Rocky Mountain Skeptics, Denver, CO; and Michael Sofka, Inquiring Skeptics of Upper New York, Troy, NY).

    UPDATE (December 1, 2010): D.J. Grothe states in the most recent (Nov. 26) Point of Inquiry podcast (Karen Stollznow interviews James Randi and D.J. Grothe), at about 36:50, that he has been misunderstood in his references to skepticism as a "worldview."  This suggests to me that he has in mind a narrower meaning, as Barbara Drescher has interpreted him in the comments below.  My apologies to D.J. for misconstruing his meaning.

    Monday, May 31, 2010

    The market for creationism

    Todd Wood of the Center for Origins Research at Bryan College has gotten around to doing what I haven't done, updating my analysis of the market for creationism that I did in early 2007.  He confirms some of the trends I noted, such as that the market for creationism has been growing and is dominated by Answers in Genesis.  His update goes further, and includes a comparison to the National Center for Science Education, noting that he market for criticism of creationism has grown along with the market for creationism.  He also points out that the groups involved got a boost revenue in 2005 during the Dover trial, that the AiG split from Creation Ministries International doesn't appear to have hurt AiG, and that "Godquest," formerly known as Creation Science Evangelism, the Hovind organization, is the #3 creationist organization for revenue behind AiG and the Institute for Creation Research.

    Wood reports the following numbers for recent years:
    2003:
    $14.6 million market
    AIG: 61.6%
    ICR: 30.6%
    *CEM: 4.2%
    *CRS: 1.7%
    *CM: 1.6%
    *CSC: 0.4%

    2004:
    $15.8 million market
    AIG: 65.7%
    ICR: 26.8%
    CEM: 3.1%
    CRS: 2.0%
    CM: 1.9%
    CSC: 0.4%

    2005: **
    $10.8 million market
    AIG: 50.4%
    ICR: 40.3%
    CEM: 5.1%
    CRS: 1.0%
    CM: 2.5%
    CSC: 0.6%

    2006:
    $21.3 million market
    AIG: 64.1%
    ICR: 30.9%
    CEM: 2.2%
    CRS: 1.1%
    CM: 1.3%
    CSC: 0.3%

    2007:
    $25.6 million market
    AIG: 69.5%
    ICR: 27.6%
    CEM: no data
    CRS: 1.2%
    CM: 1.1%
    CSC: 0.3%
    CMI: 0.3%

    2008:
    $33.3 million market
    AIG: 68.2%
    ICR: 26.2%
    CEM: no data
    Godquest: 2.8%
    CRS: 0.7%
    CM: 1.0%
    CSC: 0.2%
    CMI: 0.9%
    Check out Todd Wood's post for more details.

    Thursday, May 06, 2010

    Chinese astronomy and scientific anti-realism

    On the last day of my class on Scientific Revolutions and the law, one of the students in the class, Lijing Jiang, gave a presentation titled "To Consider the Heavens: The Incorporation of Jesuit Astronomy in the Seventeenth Century Chinese Court."

    Her presentation was about how Jesuit missionaries in China brought western astronomy with them, and how it was received.  This added a very interesting complement to the course, as much of the early part of the semester was about the Copernican revolution (using Kuhn's book of the same name).  Part of what happened early on in astronomy was a division between cosmology and positional astronomy, with the former being about the actual nature of the heavens, and the latter being about creating mathematical models for prediction, to be used for navigation and calendar-setting that incorporated features not intended to represent reality (like epicycles).  These two types of astronomy didn't really get reconnected (aside from the occasional realist depiction of epicycles in crystalline spheres) until Galileo argued for a realist interpretation of the Copernican model.  And that didn't fully catch on until Newton.

    In China, calendar reform was very important as they used a combination of a lunar month (based on phases of the moon) and tropical year that had to be synchronized annually, and an unpredicted eclipse was considered to be a bad omen.  The Chinese had gone through many calendar reforms as a result of these requirements, and they considered that theories needed to be revised about every 300 years (in other realms as well, not just astronomy).

    The Jesuits happened to bring Copernican astronomy to China in the late 16th/early 17th century, with a goal of impressing and converting the Emperor.  They got their big chance to make a splash in 1610, when the Chinese court astronomers mispredicted a solar eclipse by one day, which the Jesuits predicted correctly in advance.  But this turned out in a way to be poorly timed, as the Counter-Reformation decided to start cracking down on Copernican heliocentrism after 1610, making it a formal doctrinal issue in 1616.  The Jesuits in China thus switched to the Tychonic system which was geometrically equivalent to the Copernican model but geocentric.

    Multiple factors persuaded the Chinese to maintain a relativistic, anti-realist understanding of positional astronomy beyond the Scientific Revolution.  In addition to Taoist and Buddhist views of life involving constant change and their past experience with calendars suggesting revisions every 300 years, the Jesuits presented another example of apparent arbitrariness in cosmological model selection, and they continued to stick with the Tychonic model as the western world switched to heliocentrism.

    You can read Lijing Jiang's blogging at Science in a Mirror, where she may post something about her presentation in the future.

    Wednesday, May 05, 2010

    Social psychology done wrong


    The work of ASU emeritus professor of psychology Robert Cialdini, author of the classic book Influence: The Psychology of Persuasion, has shown that if a sign or card suggesting that somebody do something also indicates that most other people are likely to do that, it increases compliance with the request.  The wording of this sign, put up in ASU bathrooms all over campus by the Health and Counseling Student Action Committee, may well have the opposite of its intended effect.  Somebody should have read their Cialdini before making these signs!

    Sunday, May 02, 2010

    Politics and science in risk assessment

    There’s a widespread recognition that public policy should be informed by both scientifically verifiable factual information and by social values.  It’s commonly assumed that science should provide the facts for policy-makers, and the policy-makers should then use those facts and social and political values of the citizens they represent to make policy.  This division between fact and value is institutionalized in processes such as a division between risk assessment performed by scientists concerned solely with the facts and subsequent risk management that also involves values, performed in the sphere of politics.  This neat division, however, doesn’t actually work that well in practice.

    “Taking European Knowledge Society Seriously,” a 2007 “Report by the Expert Group on Science and Governance to the Science, Economy and Society Directorate, Directorate-General for Research” of the European Commission, spends much of its third chapter criticizing this division and the idea that risk assessment can be performed in a value-free way.  Some of the Report’s objections are similar to those made by Heather Douglas in her book Science, Policy, and the Value-Free Ideal, and her analysis of a topography of values is complementary to the Report.  The selection of what counts as input into the risk assessment process, for example, is a value-laden decision that is analogous to Douglas’ discussion of problem selection.  Health and safety concerns are commonly paramount, but other potential risks--to environment, to economy, to social institutions--may be minimized, dismissed, or ignored.  Selection of methods of measurement also can implicitly involve values, as also is observed by Douglas.  The Report notes, “health can be measured alternatively as frequency or mode of death or injury, disease morbidity, or quality of life,” and questions arise as to how to aggregate and weight different populations, compare humans to nonhumans, and future generations to present generations.

    In practice, scientists tend to recognize questions of these sorts, as well as that they are value-laden.  This can lead to the process being bogged down by scientists wanting policy-makers to answer value questions before they perform their risk assessment, while policy-makers insist that they just want the scientific facts of the matter before making any value-based decisions.  Because science is a powerful justification for policy, it’s in the interest of the policy-maker to push as much as possible to the science side of the equation.  We see this occur in Congress, which tends to pass broad-brush statutes which “do something” about a problem but push all the details to regulatory agencies, so that Congress can take credit for action but blame the regulatory agencies if it doesn’t work as expected.  We see it in judicial decisions, where the courts tend to be extremely deferential to science.  And we see it within regulatory agencies themselves, as when EPA Administrator Carol Browner went from saying first that “The question is not one of science, the question is one of judgment” (Dec. 1996, upon initially proposing ozone standards) to “I think it is not a question of judgment, I think it is a question of science” (March 1997, about those same standards).  The former position is subject to challenge in ways that the latter is not.

    In reality, any thorough system of risk management needs to be iterative and involve both scientific judgments about facts and political decisions that take into account values, taking care not to use values in a way to achieve predetermined conclusions, but to recognize what sets of interests and concerns are of significance.  This doesn’t preclude the standardization of methods of quantification and assessment, it just means that they need to be able to evolve in response to feedback, as well as to begin from a state where values are explicitly used in identifying what facts need to be assessed.

    [A slightly different version of the above was written as a comment for my Human and Social Dimensions of Science and Technology core seminar. Thanks to Tim K. for his comments.]

    Thursday, April 29, 2010

    Science fiction scenarios and public engagement with science

    Science fiction has been a popular genre at least since Jules Verne’s 19th century work, and arguably longer still. But can it have practical value as well as be a form of escapist entertainment? Clark Miller and Ira Bennett of ASU suggest that it has potential for use in improving the capacity of the general public “to imagine and reason critically about technological futures” and for being integrated into technology assessment processes (“Thinking longer term about technology: is there value in science fiction-inspired approaches to constructing futures?" Science and Public Policy 35(8), October 2008, pp. 597-606).

    Miller and Bennett argue that science fiction can provide a way to stimulate people to wake from “technological somnambulism” (Langdon Winner’s term for taking for granted or being oblivious to sociotechnical changes), in order to recognize such changes, realize that there may be alternative possibilities and that particular changes need not be determined, and to engage with deliberative processes and institutions that choose directions of change. Where most political planning is short-term and based on projections that simply extend current trends incrementally into the future, science fiction provides scenarios which exhibit “non-linearity” by involving multiple, major, and complex changes from current reality. While these scenarios “likely provide...little technical accuracy” about how technology and society will actually interact, they may still provide ideas about alternative possibilities, and in particular to provide “clear visions of desirable--and not so desirable--futures.”

    The article begins with a quote from Christine Peterson of the Foresight Institute recommending that “hard science fiction” be used to aid in “long-term” (20+ year) prediction scenarios; she advises, “Don’t think of it as literature,” and focus on the technologies rather than the people. Miller and Bennett, however, argue otherwise--that not only is science fiction useful for thinking about longer-term consequences, but that the parts about the people--how technologies actually fit into society--are just as, if not more important than the ideas about the technologies themselves.

    It ends with some examples of use of science fiction in workshops for nanotechnology researchers which have been conducted by Bennett and suggested uses in science education and in “society’s practices and institutions for public engagement and technology assessment.” About the former suggested use, the authors write that “The National Science Foundation, which has by and large not been in the business of supporting science fiction, might be encouraged to fund training and/or networking exercises that would foster greater interaction among scientists and fiction writers.”

    While some steps have been taken to promote interaction between scientists and fiction writers--most notably the National Academy of Sciences’ Science and Entertainment Exchange project headed by executive director Jennifer Ouellette who spoke at last year’s The Amazing Meeting 7--this interaction is mostly one-way. The project is conceived of as a way for science to be accurately communicated to the general public through entertainment, rather than facilitating the generation of ideas for technological innovation and scientific development from the general public or the entertainment stories that are created. The SEE promotes the idea of collaboration between scientists and entertainment producers on the creative works of entertainment, but not necessarily directing creative feedback into science or building new capacities in science and technology, except indirectly by providing the general public with inspiration about science. Similarly, the Skeptrack and Science Track at the annual Dragon*Con science fiction convention in Atlanta provide ways for scientists and skeptics to interact with science fiction fans (and creators of science fiction works), but the communication is primarily in one direction via speakers and panels, with an opportunity for Q&A. (Unlike the notion of a SkeptiCamp, where all participants are potentially on an equal basis, with everyone given the opportunity to be a presenter.)

    [P.S. The Long Now Foundation is an organization that makes the Foresight Institute’s time horizon look short--their time frame is the next 10,000 years, with a focus on how to make extremely long-term projects work and how to create an institutional framework that can persist for extremely long periods of time. (The obligatory science fiction references are Walter M. Miller, Jr.’s A Canticle for Leibowitz and Neal Stephenson’s Anathem.)]

    [A slightly different version of the above was written for my Human and Social Dimensions of Science and Technology core seminar. Thanks to Judd A. for his  comments--he raised the concern that SkeptiCamp is connected to a rationalist form of skepticism that is concerned to "narrow the range of 'acceptable' beliefs" rather than widen it.  While this may be true, depending on what the class of "acceptable" beliefs is prior to applying a skeptical filter, it need not be--applying scientific methodology and critical thinking can also open up possibilities for individuals.  And if the initial set of beliefs includes all possibilities, converting that set to knowledge must necessarily involve narrowing rather than expanding the range, as there are many more ways to go wrong than to go right.  But this criticism points out something that I've observed in my comparison of skepticism to Forteanism--skepticism is more concerned about avoiding Type I errors than Type II errors, while Forteans are more concerned about avoiding Type II errors than Type I errors, and these are complementary positions that both need representation in society.]