My barber told me, quite straight-faced, a new creationist claim. There is, he said, abundant evidence in the Torah that dinosaurs were actually demons. "No, they were just animals," I replied. Despite our disagreement, I got a good haircut.
But I've got to admit, that's a new one for me.
Wednesday, November 25, 2009
Tuesday, November 24, 2009
Aboard the Toronto Airport Ferry
I never flew into the Toronto Island airport before, but I did so for the first time on Sunday. After you land, a ferry takes you across 120 meters of water in 60 seconds. This is what the view looks like from the ferry. Not bad, eh?
Another Anti-Choicer Refuses to State What the Penalty Should be for Abortion
I commented about this earlier.
Here's the bishop of Providence, RI, who wants to outlaw abortion but refuses to say what the penalty should be for a woman who has an abortion.
Here's the bishop of Providence, RI, who wants to outlaw abortion but refuses to say what the penalty should be for a woman who has an abortion.
Coma Video Shows Use of Bogus "Facilitated Communication" Technique
By now you've probably heard the story of a man, thought to be in a coma for 23 years, who was recently "discovered" to be conscious the whole time.
Maybe so. But maybe not.
As James Randi points out, a video clearly shows that the man himself is not typing. Instead, a woman is shown using a technique called "facilitated communication", where she moves his hand to type on a keyboard. He is not moving his hand independently.
Facilitated communication is a bogus technique that has been exposed as fraudulent.
This makes me very suspicious of the entire report.
Not surprisingly, at Uncommon Descent, Denyse ("The World's Crappiest Reporter") O'Leary completely buys the story.
Maybe so. But maybe not.
As James Randi points out, a video clearly shows that the man himself is not typing. Instead, a woman is shown using a technique called "facilitated communication", where she moves his hand to type on a keyboard. He is not moving his hand independently.
Facilitated communication is a bogus technique that has been exposed as fraudulent.
This makes me very suspicious of the entire report.
Not surprisingly, at Uncommon Descent, Denyse ("The World's Crappiest Reporter") O'Leary completely buys the story.
Three Felonies a Day
That's the title of a new book by Harvey Silverglate. The subtitle is "How the Feds Target the Innocent".
There's no question that overzealous and politically-motivated prosecution has destroyed the lives of many innocent people. One prominent example discussed by Silverglate is former Alabama governor Don Siegelman, whose conviction on corruption charges was almost certainly engineered by Karl Rove and the Bush White House.
Despite this, I was disappointed by the book. For one thing, the title - based on a claim that the average "busy professional" "likely commit[s] several federal crimes" each day, is simply not substantiated. The crimes discussed in this book are mostly things like overprescription of painkillers, flawed medical device manufacture, accounting fraud, etc., which are probably not the domain of the average "busy professional". For another, the focus on federal crimes leaves out some of the most egregious prosecutions, like those for copyright violation and teenagers recording their own sex acts.
But the main flaw is that I was not actually convinced by several of the cases discussed that the people charged were actually innocent or that the prosecutions were illegitimate. Some of the cases turn on strained readings of existing law, where the people involved should have known their actions were dubious. In two cases - the prosecution of Boston pols Kevin White and Thomas Finneran - Silverglate seems to suggest that influence peddling is just a normal part of city politics, and nothing to get worked up over. I don't agree. I want all politicians to keep their decisions squeaky clean and completely removed from their financial interests. They need to avoid even the appearance of conflict of interest.
So, while I agree with Silverglate's main thesis, I think some of the cases he chose were not the best examples of overzealous prosecution. Too bad - because this is an important topic that deserves a comprehensive treatment.
There's no question that overzealous and politically-motivated prosecution has destroyed the lives of many innocent people. One prominent example discussed by Silverglate is former Alabama governor Don Siegelman, whose conviction on corruption charges was almost certainly engineered by Karl Rove and the Bush White House.
Despite this, I was disappointed by the book. For one thing, the title - based on a claim that the average "busy professional" "likely commit[s] several federal crimes" each day, is simply not substantiated. The crimes discussed in this book are mostly things like overprescription of painkillers, flawed medical device manufacture, accounting fraud, etc., which are probably not the domain of the average "busy professional". For another, the focus on federal crimes leaves out some of the most egregious prosecutions, like those for copyright violation and teenagers recording their own sex acts.
But the main flaw is that I was not actually convinced by several of the cases discussed that the people charged were actually innocent or that the prosecutions were illegitimate. Some of the cases turn on strained readings of existing law, where the people involved should have known their actions were dubious. In two cases - the prosecution of Boston pols Kevin White and Thomas Finneran - Silverglate seems to suggest that influence peddling is just a normal part of city politics, and nothing to get worked up over. I don't agree. I want all politicians to keep their decisions squeaky clean and completely removed from their financial interests. They need to avoid even the appearance of conflict of interest.
So, while I agree with Silverglate's main thesis, I think some of the cases he chose were not the best examples of overzealous prosecution. Too bad - because this is an important topic that deserves a comprehensive treatment.
Saturday, November 21, 2009
Rowing and the Thue-Morse Sequence
Here's an interesting preprint by John Barrow about the optimal configuration of rowers to minimize "wiggle". The story was picked up by Technology Review, which you should go read first.
Ultimately, the problem comes down to assigning exactly half of the numbers from 1 through N a sign of +1, and the other half -1, so that the sum of the numbers is 0. For N = 4 there is one solution
and its "reflection" that is obtained by multiplying everything by -1.
It's easy to prove that a solution exists if and only if N is a multiple of 4. For N = 8, Barrow proposes some new solutions.
There is a connection here to the Thue-Morse sequence t(i), which assigns to i either +1 or -1, according to the parity of the number of 1's in the binary expansion of i. An old theorem of D. H. Lehmer implies that
Σ0 ≤ i < 2k t(i) p(i) = 0
for any polynomial of degree < k. So in particular, the Thue-Morse sequence gives an infinite family of solutions to the wiggle-free rowing problem, whenever N is a power of 2. In particular, for N = 8, Barrow's solution (d) is given by the Thue-Morse sequence.
As an aside, Barrow implies something about the complexity of the problem in his abstract. He says, "We show that the problem of finding the zero-moment rigs is equivalent to a version of the NP-complete Subset Sum problem." No, not really. He showed that his problem is a special case of the subset-sum problem, which says nothing at all about its complexity. After all, his problem is also a special case of the halting problem! And in any event, since it is easy to show that solutions exist if and only if N is a multiple of 4, the decision problem's complexity is trivial.
This is yet another example of the rule that says "Whenever scientists or mathematicians with no formal training in computer science talk about complexity theory, with high probability they are quickly going to say something stupid." For another example, see here. Of course, if I were to write about physics, no doubt I would say something equally stupid.
Ultimately, the problem comes down to assigning exactly half of the numbers from 1 through N a sign of +1, and the other half -1, so that the sum of the numbers is 0. For N = 4 there is one solution
1 2 3 4
+1 -1 -1 +1
and its "reflection" that is obtained by multiplying everything by -1.
It's easy to prove that a solution exists if and only if N is a multiple of 4. For N = 8, Barrow proposes some new solutions.
There is a connection here to the Thue-Morse sequence t(i), which assigns to i either +1 or -1, according to the parity of the number of 1's in the binary expansion of i. An old theorem of D. H. Lehmer implies that
Σ0 ≤ i < 2k t(i) p(i) = 0
for any polynomial of degree < k. So in particular, the Thue-Morse sequence gives an infinite family of solutions to the wiggle-free rowing problem, whenever N is a power of 2. In particular, for N = 8, Barrow's solution (d) is given by the Thue-Morse sequence.
As an aside, Barrow implies something about the complexity of the problem in his abstract. He says, "We show that the problem of finding the zero-moment rigs is equivalent to a version of the NP-complete Subset Sum problem." No, not really. He showed that his problem is a special case of the subset-sum problem, which says nothing at all about its complexity. After all, his problem is also a special case of the halting problem! And in any event, since it is easy to show that solutions exist if and only if N is a multiple of 4, the decision problem's complexity is trivial.
This is yet another example of the rule that says "Whenever scientists or mathematicians with no formal training in computer science talk about complexity theory, with high probability they are quickly going to say something stupid." For another example, see here. Of course, if I were to write about physics, no doubt I would say something equally stupid.
Friday, November 20, 2009
Authoritarian Creep of the Month
Kurt Greenbaum is the "director of social media" at the St. Louis Post-Dispatch. Last Friday, he posted a topic for discussion, What's the Craziest Thing You've Ever Eaten?
One not-particularly-clever commenter wrote in the answer, "pussy", and Greenbaum's authoritarian streak took over. How dare anyone refer to oral sex in his space! How shocking! How vulgar!
Greenbaum then did what every good little fascist-in-training would do: he tattletaled on the commenter to his employer:
A few minutes later, the same guy posted the same single-word comment again. I deleted it, but noticed in the WordPress e-mail that his comment had come from an IP address at a local school. So I called the school. They were happy to have me forward the e-mail, though I wasn’t sure what they’d be able to do with the meager information it included.
About six hours later, I heard from the school’s headmaster. The school’s IT director took a shine to the challenge. Long story short: Using the time-frame of the comments, our website location and the IP addresses in the WordPress e-mail, he tracked it back to a specific computer. The headmaster confronted the employee, who resigned on the spot.
Not surprisingly, the reaction to Greenbaum's misconduct was negative. What to do? Why, shut off the comments, of course!
Comments are still open on here, in case you want to pile on.
Update: the Post-Dispatch deleted my comment, although it contained no profanity - just criticism. Big surprise.
One not-particularly-clever commenter wrote in the answer, "pussy", and Greenbaum's authoritarian streak took over. How dare anyone refer to oral sex in his space! How shocking! How vulgar!
Greenbaum then did what every good little fascist-in-training would do: he tattletaled on the commenter to his employer:
A few minutes later, the same guy posted the same single-word comment again. I deleted it, but noticed in the WordPress e-mail that his comment had come from an IP address at a local school. So I called the school. They were happy to have me forward the e-mail, though I wasn’t sure what they’d be able to do with the meager information it included.
About six hours later, I heard from the school’s headmaster. The school’s IT director took a shine to the challenge. Long story short: Using the time-frame of the comments, our website location and the IP addresses in the WordPress e-mail, he tracked it back to a specific computer. The headmaster confronted the employee, who resigned on the spot.
Not surprisingly, the reaction to Greenbaum's misconduct was negative. What to do? Why, shut off the comments, of course!
Comments are still open on here, in case you want to pile on.
Update: the Post-Dispatch deleted my comment, although it contained no profanity - just criticism. Big surprise.
Sarah Palin: Pathological Liar
Huffington Post demonstrates that Sarah Palin's pathological liar tendencies continue in her new book.
Wow, what a surprise.
I guess now she'll have to threaten them with a lawsuit, too.
Meanwhile, you can watch this video from two clueless Palin supporters.
Wow, what a surprise.
I guess now she'll have to threaten them with a lawsuit, too.
Meanwhile, you can watch this video from two clueless Palin supporters.
Wednesday, November 18, 2009
Paper Rebutting Dembski Finally Out
Back on my previous sabbatical, in 2001-2, I spent a couple of months reading WIlliam Dembski's book, No Free Lunch, which he was kind enough to send me. I chose to do that for a number of reasons: first, I was interested to see if his claims about a mathematical refutation of Darwinism were true; second, a sabbatical is the time to tackle some unusual project you don't usually have time for; and third, I have an interest in pseudoscience and pseudomathematics. Reading it led to some fun discussions with Wesley Elsberry and we eventually produced a long, 54-page refutation of many of Dembski's claims.
But then, what to do with it? I had heard Dembski and Ruse were co-editing a voume, so I briefly entertained the idea of submitting it for inclusion there. But I was worried Dembski would refuse because the paper was sharply critical of his work, and after talking to Ruse I had second thoughts and decided to look for another venue. We chose a journal whose subject matter included biology and philosophy, but the paper was eventually rejected -- not because of the quality of the paper, but because the referees felt that spending 54 pages to debunk what they perceived as anti-evolution crackpottery was not a good use of their journal's space.
Finally, we were invited to submit the paper to a special issue of the journal Synthese, and we did so. The paper went through multiple rounds of refereeing, with the referees suggesting that more and more be cut. Now that it has finally appeared, it is down to a measly 34 pages. Luckily the long version is still available online.
If you can't read the Synthese version because you don't have a subscription, just write me and I'll be happy to send you a copy.
This is the longest interval I've ever had between finishing a paper (2002) and the time it appeared (2009). And it's likely to be my only paper in a philosophy journal. I predict that the intelligent design community will continue to ignore all the criticisms (which have been available to them for years) and continue to pretend that CSI is actually a coherently-defined entity, and that the "law of conservation of information" holds. I predict lots of breast-beating, and excuses for not addressing our criticisms, but no response that deals forthrightly with all the errors we found in Dembski's work.
But then, what to do with it? I had heard Dembski and Ruse were co-editing a voume, so I briefly entertained the idea of submitting it for inclusion there. But I was worried Dembski would refuse because the paper was sharply critical of his work, and after talking to Ruse I had second thoughts and decided to look for another venue. We chose a journal whose subject matter included biology and philosophy, but the paper was eventually rejected -- not because of the quality of the paper, but because the referees felt that spending 54 pages to debunk what they perceived as anti-evolution crackpottery was not a good use of their journal's space.
Finally, we were invited to submit the paper to a special issue of the journal Synthese, and we did so. The paper went through multiple rounds of refereeing, with the referees suggesting that more and more be cut. Now that it has finally appeared, it is down to a measly 34 pages. Luckily the long version is still available online.
If you can't read the Synthese version because you don't have a subscription, just write me and I'll be happy to send you a copy.
This is the longest interval I've ever had between finishing a paper (2002) and the time it appeared (2009). And it's likely to be my only paper in a philosophy journal. I predict that the intelligent design community will continue to ignore all the criticisms (which have been available to them for years) and continue to pretend that CSI is actually a coherently-defined entity, and that the "law of conservation of information" holds. I predict lots of breast-beating, and excuses for not addressing our criticisms, but no response that deals forthrightly with all the errors we found in Dembski's work.
Creationists Handing Out Origin of Species at MIT
As you probably know, creationist moron Ray Comfort has created a new version of Darwin's Origin of Species with his own introduction, and his minions are now handing them out at college campuses in the US. Above is a picture taken 15 minutes ago at MIT, showing a creationist happily distributing this bizarre book.
While these morons are distributing Ray Comfort's sleaze, MIT researchers are getting ready for a symposium on the evolution of the eye on November 20.
Ironic, isn't it?
New Blue Pigment Discovered
Here's an interesting article about an apparently new blue pigment discovered serendipitously by chemists at Oregon State. The color is reported to arise from Mn3+ "introduced into the trigonal bipyramidal sites of metal oxides". The new pigment is said to be better than alternatives such as cobalt blue, ultramarine, Prussian blue, and azurite, because it is stable and non-toxic.
I'm a little skeptical that it's commercially viable, since the examples the chemists have produced so far are based on compounds using the rare metals yttrium, indium, lutetium, and gallium.
Perhaps it is just a coincidence, but there is exactly one known mineral that crystallizes in the trigonal bipyramidal form, and it is also known for its blue color: benitoite (BaTiSi3O9).
I'm a little skeptical that it's commercially viable, since the examples the chemists have produced so far are based on compounds using the rare metals yttrium, indium, lutetium, and gallium.
Perhaps it is just a coincidence, but there is exactly one known mineral that crystallizes in the trigonal bipyramidal form, and it is also known for its blue color: benitoite (BaTiSi3O9).
Monday, November 16, 2009
Stupid Creationist Letter Award for November
A creationist has responded to this post about the dirty rhetorical tricks of creationists, as follows:
There is really no scientific evidence that proves evolution happened. No animal has developed extra chromosomes that we have recorded and none of the findings of supposedly ancestors have any DNA evidence. Evidence does not hold up in court.
Darwin had a theory, based on observation. Fine.
Creationists have a theory based on the Bible.
Intelligent design mongers are clueless and belive in Star Trek.
No one knows where we come from, but the fact that Darwinism was used as en excuse to justify fascists regimes is a fact. They refer to Darwin as their substitute for God all the time in their literature, comparing fascism to "Survival of the Fittest. Why? He is dead, he can't defend himself.
Let me explain where they are wrong. Nature doesn't work by "survival of the fittest". "Survival of the species" trumps that. Observe bees, bacteria, herds of animals, even predators like lions depend on socialization for survival. Where is the "survival of the fittest?". The economists, in their greedy ways twist science to justify a consumerist society in which a few have wealth and the rest suffer.
It really is remarkable for its stupidity, ignorance, and arrogance, all rolled up into one. Isn't it?
There is really no scientific evidence that proves evolution happened. No animal has developed extra chromosomes that we have recorded and none of the findings of supposedly ancestors have any DNA evidence. Evidence does not hold up in court.
Darwin had a theory, based on observation. Fine.
Creationists have a theory based on the Bible.
Intelligent design mongers are clueless and belive in Star Trek.
No one knows where we come from, but the fact that Darwinism was used as en excuse to justify fascists regimes is a fact. They refer to Darwin as their substitute for God all the time in their literature, comparing fascism to "Survival of the Fittest. Why? He is dead, he can't defend himself.
Let me explain where they are wrong. Nature doesn't work by "survival of the fittest". "Survival of the species" trumps that. Observe bees, bacteria, herds of animals, even predators like lions depend on socialization for survival. Where is the "survival of the fittest?". The economists, in their greedy ways twist science to justify a consumerist society in which a few have wealth and the rest suffer.
It really is remarkable for its stupidity, ignorance, and arrogance, all rolled up into one. Isn't it?
Boston's Monument to Foolishness
This prominent building, in Boston's downtown, is probably the city's largest monument to foolishness. Although its supporters make extravagant health claims, these are not supported by evidence. Nevertheless, the group's political power has helped pass laws in dozens of states to allow it to avoid prosecution.
What building is it?
Sunday, November 15, 2009
Phony Calls for "Civility"
You know a call for "more civility" is completely phony when the person who issues it only cites examples from one side of the debate.
That's the case with this recent opinion piece by Casey Luskin, spokesman for the Discovery Institute.
Luskin lists three examples of incivility, and all of them are from the pro-science, anti-creationist side. He fails to cite a single example of incivility from a creationist, even though there are many examples to choose from. As Wesley Elsberry has documented, Luskin's friends routinely compare evolutionary biologists to Nazis, communists, the Taliban, and Satan. Luskin himself has labeled materialists an "ominous force" that will "consume" people. William Dembski proudly sponsored an animation that used fart noises to make fun of Judge Jones, who decided the Kitzmiller v. Dover case.
No one is going to be fooled by this dishonest posturing.
That's the case with this recent opinion piece by Casey Luskin, spokesman for the Discovery Institute.
Luskin lists three examples of incivility, and all of them are from the pro-science, anti-creationist side. He fails to cite a single example of incivility from a creationist, even though there are many examples to choose from. As Wesley Elsberry has documented, Luskin's friends routinely compare evolutionary biologists to Nazis, communists, the Taliban, and Satan. Luskin himself has labeled materialists an "ominous force" that will "consume" people. William Dembski proudly sponsored an animation that used fart noises to make fun of Judge Jones, who decided the Kitzmiller v. Dover case.
No one is going to be fooled by this dishonest posturing.
Authoritarian High School Principal of the Month
Our nomination for authoritarian high school principal of the month goes to Thomas Murray, principal of Danvers High School in Danvers, Massachusetts, who has chosen to ban the word "meep" from the campus.
Students reportedly had been using the nonsense word to disrupt classes. But isn't disrupting class already an offense at the school? Why would a word need to be banned, too?
Instead of using this opportunity to talk about free speech and preserving a good learning environment, the principal chose a heavy-handed and authoritarian approach to the problem. Shame on him.
Students reportedly had been using the nonsense word to disrupt classes. But isn't disrupting class already an offense at the school? Why would a word need to be banned, too?
Instead of using this opportunity to talk about free speech and preserving a good learning environment, the principal chose a heavy-handed and authoritarian approach to the problem. Shame on him.
NPR Examines Consciousness
An NPR series called "The Really Big Questions" has recently examined the question, "What Can the Animal Mind Tell Us About Human Consciousness?"
The people they interviewed included neuroscientist Christof Koch, ethologist Colin Allen, primatologist Frans de Waal, and philosopher Colin McGinn. Now, who do you suppose had the most moronic things to say? Take a guess.
No surprise, it was the philosopher. Whenever scientific subjects are discussed, you can count on some philosopher to chime in with something really stupid. McGinn made all sorts of dubious unsupported claims, like "There are very strong reasons to think that reductionism is not true". He said, "I think there are problems of principle. In the very project you're trying to understand how the phenomenological might arise from the organic, because we're trying to bring together two different conceptual schemes, two different types of knowledge we have of the world, knowledge which we derive from first person awareness of our own consciousness and then the knowledge we have of the physical world, and these two types of knowledge simply don't fit together." Luckily Christof Koch was there to answer some of this kind of fuzzy thinking.
Unfortunately, the interviewer, Lynn Neary, didn't help things out. Although it should be obvious to anyone who thinks about it for even a few minutes that what we call "consciousness" is multifaceted, involving things like memory, planning, anticipation, modelling of the environment, and self-awareness, it took nearly half an hour before these ideas were brought out explicitly, and even after that, Neary persisted in conflating them. She seemed to want to have some very simple definition of what consciousness is before discussing it. Is it too much to ask that interviewers do a little homework before beginning their job?
If there's any consolation, at least they didn't interview Mario Beauregard.
The people they interviewed included neuroscientist Christof Koch, ethologist Colin Allen, primatologist Frans de Waal, and philosopher Colin McGinn. Now, who do you suppose had the most moronic things to say? Take a guess.
No surprise, it was the philosopher. Whenever scientific subjects are discussed, you can count on some philosopher to chime in with something really stupid. McGinn made all sorts of dubious unsupported claims, like "There are very strong reasons to think that reductionism is not true". He said, "I think there are problems of principle. In the very project you're trying to understand how the phenomenological might arise from the organic, because we're trying to bring together two different conceptual schemes, two different types of knowledge we have of the world, knowledge which we derive from first person awareness of our own consciousness and then the knowledge we have of the physical world, and these two types of knowledge simply don't fit together." Luckily Christof Koch was there to answer some of this kind of fuzzy thinking.
Unfortunately, the interviewer, Lynn Neary, didn't help things out. Although it should be obvious to anyone who thinks about it for even a few minutes that what we call "consciousness" is multifaceted, involving things like memory, planning, anticipation, modelling of the environment, and self-awareness, it took nearly half an hour before these ideas were brought out explicitly, and even after that, Neary persisted in conflating them. She seemed to want to have some very simple definition of what consciousness is before discussing it. Is it too much to ask that interviewers do a little homework before beginning their job?
If there's any consolation, at least they didn't interview Mario Beauregard.
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