PZ Myers quits skeptic movement, should we care?

by Massimo Pigliucci

PZ Myers, the cantankerous evolutionary biologist / blogger who writes at Pharyngula, has officially announced that he is leaving the skeptic movement. Although PZ has been uneasy for a while with several aspects of grassroots and organized skepticism, the straw that broke the camel’s back apparently came during the recent Freethought Alliance meeting in Orange County, CA, in disgusted reaction to another speaker’s remarks. That other speaker is none other than Jamy Ian Swiss, who apparently gave a talk very similar to this one, in which he chastised PZ personally for engaging in a brand of skepticism that, in Jamy’s opinion, is outside the bounds of science.

Nothing like telling a scientist that he isn’t being scientific to piss him off, though admittedly PZ’s threshold for getting pissed off is pretty low. I have no dog in this fight, since I am on record disliking PZ’s rhetoric and I have told Jamy several times in private that I don’t like his approach either — ironically, for similar reasons to my rejection of PZ’s! Nor, frankly, is it particularly interesting to discuss, let alone adjudicate, a minor kerfuffle that is likely to soon become yet another distant blip in the history of skepticism. But there is something to be learned here, which is why I will use this specific incident to make a broader point about what I think is really problematic in the skeptic movement.

Let’s start by taking a closer look at what exactly PZ is complaining about:

it is clear that “scientific skepticism” is simply a crippled, buggered version of science with special exemptions to set certain subjects outside the bounds of its purview. In addition, its promoters are particularly sensitive to having their hypocrisy pointed out (that, by the way, is what triggered his [Swiss’] outburst — you’d have to be stupid or a liar to think that skepticism gives religion special privileges.)

To begin with, skepticism is not, nor has it ever aspired to be, science. It is a grassroots movement with the triple aim of debunking paranormal claims, defending science in the public arena, and promoting critical thinking (all activities for which scientists have little patience and even less direct incentive). The “certain subject” that PZ thinks people like Jamy shouldn’t be giving a special exemption to is, of course, the supernatural. The idea is that science has no bounds, and that it can (and ought to) be applied to any claim whatsoever, no matter how far such claim may be from anything resembling a scientific hypothesis. As readers of RS know, the issue of demarcation projects (science vs pseudoscience, science vs philosophy) is one about which I think and write a lot. It’s also well known that my take is closer to Jamy’s (on this particular issue) than to PZ’s, though I think the matter hinges on non-trivial aspects of epistemology and philosophy of science, and is not something that can be easily settled on the basis of the somewhat simplistic arguments that abound among skeptics (who, after all, are neither epistemologists not philosophers of science).

Regardless, I recognize that very smart people (such as my co-editor for a forthcoming book on this very topic, Maarten Boudry) have different opinions on whether and in what sense science can address supernatural claims, and that they have good arguments with which to back up those opinions. I most certainly don’t think that Maarten and several others are “stupid or liars” just because they happen to disagree with me. Keep that particular comment by PZ in mind, we’ll get back to it soon.

PZ’s rant continues thus: I was also annoyed by the skeptic movement’s appropriation of the term “scientific” all over the place…except that it’s a “science” that doesn’t make use of accumulated prior knowledge, that abandons the concept of the null hypothesis, and that so narrowly defines what it will accept as evidence that it actively excludes huge domains of knowledge.

Ah, yes, one should not dare to appropriate the label “scientific” without proper warrant. Except of course that “warrant” here shouldn’t be equated with “agrees with PZ Myers.” By the way, the concept of null hypothesis is a bit outdated PZ, you may want to read Chapter 10 of my Making Sense of Evolution to bring you up to date on that particular issue. At the very least we should agree that formulating null hypotheses is by no means a necessary condition for doing science (and it certainly isn’t a sufficient one).

So don’t call me a “skeptic”. I’ll consider it an insult, like calling a writer a stenographer, a comedian a mime, a doctor a faith healer, a scientist a technician. I’m out.

Be my guest, but please don’t insult a large swath of people, both professional academics and not, who value that label because — at its best — it refers to the sort of intellectual rigor and curiosity embodied by philosophers like David Hume and scientists like Carl Sagan. At any rate, why do you insist in being so unpleasant even with people you mostly agree with? (Oh, I forgot, you did that to one of my friends too, and I called you on it.)

That’s pretty much it: PZ thinks the supernatural should not be “exempted” from scientific skepticism (a term he considers an insult to science anyway), and on that basis he is willing to call others names and to quit in a huff. Suit yourself, PZ, we’ll survive without you. But it would be a pity to let this episode go without learning a lesson or two.

I think the primary problem with the skeptic movement — of which I am and remain a proud member — is that too many people, both among the “leaders” and the rank-and-file, seem to be in it for the sheer pleasure of calling others out as idiots. Typically this contempt is reserved for religious people, believers in pseudoscience, etc., but occasionally we turn the guns on some of our own and shoot just as joyfully.

No, I am not suggesting that skeptics should refrain from criticizing other skeptics. I have done (and, be warned, will continue to do so!) my fair share of that, because I think there is value in open dialogue and shared critical analysis of other people’s and one’s own ideas. I am rather talking about the easy insult and dismissal without engaging in actual arguments, the first one being contrary to standards of common courtesy among fellow travelers (I mean, there are plenty of targets out there who really do deserve sarcasm and insult, the current leadership of the NRA being just one example among many), the second one simply being contrary to the whole idea of a Hume/Sagan type skeptical inquiry.

Yes, yes, I realize that I have been intemperate myself on occasion. Nobody’s perfect. But I have apologized for such blunders, and I continue to honestly strive to keep myself on this side of the admittedly fuzzy lines between irony and sarcasm, (strong) criticism and insult, or reasoned argument and outright dismissal.

I’m not the only one to have noticed that there is a problem here: just watch my friend Phil Plait’s famous “Don’t be a dick” talk, presented at TAM 2010, already three years ago. Phil’s comment introducing the talk to his readers was: “I can’t promise that I won’t be a dick. But I will strive mightily to try. That’s the most I can do, and the most I can ask of anyone.” Indeed, but somehow I can hardly imagine PZ coming even close to such a pledge. As is well known, the first step is always to be able to recognize that there is a problem. Will the skeptic community be able to do that, with or without PZ Myers?