Sam Harris vs. Dan Dennett on free will

February 13, 2014 • 11:45 am

A while back Dan Dennett published a long critique of Sam Harris’s book Free Will, a book that I liked a lot. Like me, Sam is a determinist and an incompatibilist; that is, we see our determinism as incompatible with the kind of free will that many people espouse: a “ghost in the machine” libertarian free will.

In contrast, Dan is a determinist and a compatibilist; that is, he sees determinism as compatible with free will: the special kind of free will that he limned in two books, Elbow Room and Freedom Evolves. I’ve discussed the latter book on this website, and saw Dan’s solution as largely a semantic one: the redefinition of “free will” as the evolved ability of the human brain to give outputs (“decisions”) involving integrating inputs far more complex than those processed by any other animal.  I also saw his compatibilism, as I see many philosophical brands of compatibilism, as a stopgap measure designed protect our feeling of agency. Dan, at least, has explicitly said that if people don’t think they have free will, society would be endangered. Here are two quotes from Dan’s essay, “Sometimes a spin doctor is right,” delivered when he got the Erasmus Prize (my emphases):

Picture 2If that doesn’t give some idea of why philosophers are so preoccupied with compatibilism, I don’t know what does.

In other words, I still see compatibilism as a wasted effort by philosophers to save our felt notion that we have agency; that we could have chosen otherwise. As I’ve said repeatedly, I think it’s far, far more important for philosophers to ponder, discuss, and teach the public about the consequences of determinism than to waste their time confecting various (and incompatible) versions of compatibilist free will. Yet they downplay the determinism, maybe because it would frighten the public.

Dan’s critique of Sam’s book, “Reflections on free will” was published on the Naturalism.Org site as a pdf , and also republished as text on Sam’s site.  I read it and disagreed with it, covering it with red notes. I thought that Dan was rather harsh and, in fact, a bit nasty toward Sam (they are supposed to be friends), and I found the essay discursive, wordy, full of philosophical panache that didn’t deal with Sam’s arguments (Dan, for instance, said that incompatibilists don’t believe in punishment, which is blatantly wrong), and too long.

Sam has now responded on his site with a shorter essay, “The marionette’s lament.” It’s clear that Sam was both blindsided and hurt by Dan’s tone, and it shows in the essay. But Harris gives back as good as he gets, and I think his response is on the mark. The fact is that, despite what Nahmias et al. says (and I’ll be writing about their paper soon), my own experience tells me that many, many people are explicit dualists: believers in libertarian free will. In fact, I had a discussion with someone yesterday: a smart person who hadn’t ever considered the consequences of determinism for agency, but was immediately resistant to the idea that she could not have chosen otherwise. Even Nobel Laureate Steve Weinberg, a determinist if there ever was one, was resistant to the idea that he could not have chosen otherwise at a given moment (he told me this at the “Moving Naturalism Forward” conference sixteen months ago). And of course dualists are ubiquitous among religious people, for many faiths stipulate that you can choose freely to accept or reject a god or a savior.

Therefore I see it much more important for philosophers to explore the consequences of determinism—which are pervasive when we consider our system of rewards and punishment—than to sit at their desks and make up new ways to harmonize determinism and free will.  A bottom-up reform of the legal system is one important consequence of incompatibilism, as well as a jettisoning of the idea of “moral responsibility” instead of “responsibility” (what Bruce Waller would call “take-charge responsibility”). And yes, of course we incompatibilists believe in punishment—but for rehabilitation, sequestering malefactors from the public, and as a deterrent, but not for retribution.

At any rate, I won’t give my criticisms of Dan’s paper here, and haven’t, because I knew that Sam was on the case and, in fact, his response is what I would have said, but of course far more incisive and eloquent.  Here’s just a snippet of Harris’s response. The first part shows Sam’s facility for using analogies to make points:

Average Joe feels that he has free will (first-person) and doesn’t like to be told that it is an illusion. I say it is: Consider all the roots of your behavior that you cannot see or feel (first-person), cannot control (first-person), and did not summon into existence (first-person). You say: Nonsense! Average Joe contains all these causes. He is his genes and neurons too (third-person). This is where you put the rabbit in the hat.

Imagine that we live in a world where more or less everyone believes in the lost kingdom of Atlantis. You and your fellow compatibilists come along and offer comfort: Atlantis is real, you say. It is, in fact, the island of Sicily. You then go on to argue that Sicily answers to most of the claims people through the ages have made about Atlantis. Of course, not every popular notion survives this translation, because some beliefs about Atlantis are quite crazy, but those that really matter—or should matter, on your account—are easily mapped onto what is, in fact, the largest island in the Mediterranean. Your work is done, and now you insist that we spend the rest of our time and energy investigating the wonders of Sicily.

The truth, however, is that much of what causes people to be so enamored of Atlantis—in particular, the idea that an advanced civilization disappeared underwater—can’t be squared with our understanding of Sicily or any other spot on earth. So people are confused, and I believe that their confusion has very real consequences. But you rarely acknowledge the ways in which Sicily isn’t like Atlantis, and you don’t appear interested when those differences become morally salient. This is what strikes me as wrongheaded about your approach to free will.

He then outlines his points of agreement and disagreement with Dennett:

. . . Let’s begin by noticing a few things we actually agree about: We agree that human thought and behavior are determined by prior states of the universe and its laws—and that any contributions of indeterminism are completely irrelevant to the question of free will. We also agree that our thoughts and actions in the present influence how we think and act in the future. We both acknowledge that people can change, acquire skills, and become better equipped to get what they want out of life. We know that there is a difference between a morally healthy person and a psychopath, as well as between one who is motivated and disciplined, and thus able to accomplish his aims, and one who suffers a terminal case of apathy or weakness of will. We both understand that planning and reasoning guide human behavior in innumerable ways and that an ability to follow plans and to be responsive to reasons is part of what makes us human. We agree about so many things, in fact, that at one point you brand me “a compatibilist in everything but name.” Of course, you can’t really mean this, because you go on to write as though I were oblivious to most of what human beings manage to accomplish. At some points you say that I’ve thrown the baby out with the bath; at others you merely complain that I won’t call this baby by the right name (“free will”). Which is it?

However, it seems to me that we do diverge at two points:

1. You think that compatibilists like yourself have purified the concept of free will by “deliberately using cleaned-up, demystified substitutes for the folk concepts.” I believe that you have changed the subject and are now ignoring the very phenomenon we should be talking about—the common, felt sense that I/he/she/you could have done otherwise (generally known as “libertarian” or “contra-causal” free will), with all its moral implications. The legitimacy of your attempting to make free will “presentable” by performing conceptual surgery on it is our main point of contention. Whether or not I can convince you of the speciousness of the compatibilist project, I hope we can agree in the abstract that there is a difference between thinking more clearly about a phenomenon and (wittingly or unwittingly) thinking about something else. I intend to show that you are doing the latter.

2. You believe that determinism at the microscopic level (as in the case of Austin’s missing his putt) is irrelevant to the question of human freedom and responsibility. I agree that it is irrelevant for many things we care about (it doesn’t obviate the distinction between voluntary and involuntary behavior, for instance), but it isn’t irrelevant in the way you suggest. And accepting incompatibilism has important intellectual and moral consequences that you ignore—the most important being, in my view, that it renders hatred patently irrational (while leaving love unscathed). If one is concerned about the consequences of maintaining a philosophical position, as I know you are, helping to close the door on human hatred seems far more beneficial than merely tinkering with a popular illusion.

If you want to comment below on the Harris/Dennet exchange, I’ll expect you to have read both papers. Don’t just wade in and start fulminating one way or the other!

I am saddened by the many rifts in the atheist community, but this one saddens me the most.  Dan’s tone in his original paper was peremptory and snide, and that was unnecessary. This section from Dennett’s review, for instance, is gratuitously nasty (not to me, but to Dawkins):

[Harris] is not alone among scientists in coming to the conclusion that the ancient idea of free will is not just confused but also a major obstacle to social reform. His brief essay is, however, the most sustained attempt to develop this theme, which can also be found in remarks and essays by such heavyweight scientists as the neuroscientists Wolf Singer and Chris Frith, the psychologists Steven Pinker and Paul Bloom, the physicists Stephen Hawking and Albert Einstein, and the evolutionary biologists Jerry Coyne and (when he’s not thinking carefully) Richard Dawkins.

“When he’s not thinking carefully”? Really, Dan? Richard is a longtime friend of yours, and why would you insult him in a way that’s completely unnecessary?

As Sam noted, the whole thing could have been hashed out in a give-and-take using repeated back and forth mini-essays—and without the rancor. And it would have been far more enlightening than this pair of dueling essays. Of course we won’t all agree on things, even the three remaining “Horsemen,” but there was no need for snideness and authority-pulling.

More about ME: I’m Polish Rationalist of the year, and I’m not even Polish

February 13, 2014 • 7:53 am

Each year the Polish Society of Rationalists (“Polskie Stowarzyszenie Racjonalistów”) gives out a Rationalist of the Year award. Actually, there are two: one for a Polish rationalist and the other for a foreign one. I’m chuffed to announce that this year, according to the PSR’s website, I’m the foreign awardee.  They promised to translate the award notice into English, but haven’t yet, and I’m not sure they will, so I ran it through Google translate, which always gives some amusing results:

We are pleased to announce that it comes rationalists Year 2013 were :

– In the category of foreign prof. Jerry Coyne
– In the category of national Maciej Psyk

Congratulations to both of the candidates – in the belief that the Main Board – acting role since the beginning of the Chapter competition – made ​​the right choice and make J.Coyne ‘a and M.Psyka – on their rationalist areas of action – this award ( to some extent ) – time will increase even more.

For Main Board
Jacek Tabisz – President

Here is the initial text eulogy for Jerry Coyne , which , in similar form, wygłosimy , handing Professor award in person :

Title rationalist Year for Jerry A. Coyne

Dear Professor ! We have the honor to present to Professor our annual rationalist of the Year award in recognition of his contribution to the development and popularization of biological sciences , as well as for protecting the image of science against the desire to mixing it with the popular religious myths .. Greatly appreciate the contribution of Professor ogrony to study the evolution of life on Earth, not distorted when the ” politically correct ” akomodacjonizmem . Mr. Profosor is a not so big group of biologists studying the evolution of the whole and perceiving its importance to the worldview and philosophical ground is not afraid of the truth about the world and themselves representatives of our species.
Priceless are the work of Professor on speciation , ie the separation of the species .. Speciation is one of the main mechanisms of natural evolution overlap . Road to the understanding offered by the work of Professor , the strictly scientific and the popular , is absolutely invaluable for all those interested in the natural sciences, as well as the actual answers to the questions ” where we come from , who we are and where we are going .”

The Professor is a tireless defender of rational thinking , which is very valuable for us . Professor strikes at the very source of popular irrationality and unwillingness to learn, and hence , the reluctance of the world as it is. He is Professor one of the most effective critics of creationism and akomodacjonizmu , who under the guise of a false acceptance of the theory of evolution often precludes the evolutionary process of human consciousness , which believers call the soul . Thank you, Professor, for courageous defense of science embedded in the notion of a totally materialistic and naturalistic surface of the human psyche .

Kindness of Professor owe a great lecture in Warsaw and Krakow , conducted for members, supporters and visitors PSR . Thank you also for the way the defense made ​​a scientific worldview in its full form in the Polish media. We hope for another wonderful lectures of Professor for our association and its guests, which is a great honor for us . This modest distinction , we would like to thank you, Professor, for a huge contribution to the development of science and rationalism in the world, the development of ourselves.

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ME! My award photo, in which I look as if I had bed-head

glowne This, of course, gives me the opportunity to go to Poland again to get the award and see my friends.

Update: Jerry Coyne’s health

February 13, 2014 • 7:38 am

Today is all about ME!!! (Not really, but there will be some solpsistic posts.) First is an important update on the health of my felid namesake in New Zealand. Five-week-old Jerry Coyne, a ginger tom who was abandoned by some cruel owner at a petrol station (along with four sisters), had contracted a respiratory illness. He was taken to the vet by foster mom Gayle Ferguson and given antibiotics. According to Gayle, Jerry Coyne is now recovering, thank Ceiling Cat.

Here are the latest photos of the little guy. In one of them he’s taking after his namesake by snogging a lovely female tabby.  And there’s a report from Gayle:

He’s much better.  I haven’t heard him sneeze today. He is back to his highly vocal and demanding self!

Also like his namesake! If some Kiwi needs a cat, please adopt Jerry Coyne (you must keep that name) or one of his four female littermates.  I will send an autographed copy of WEIT to any reader here who adopts one of those cats and covers the expenses of adoption (microchipping, shots, spaying, etc.)

Jerry Coyne 2
Jerry Coyne

Jerry Coyne

Thursday: Hili dialogue

February 13, 2014 • 7:29 am

Life for Hili (and most house cats) is beer and skittles. Here the Editor-in-Chief manages to supervise and get fusses at the same time

M: Why are you purring so loudly?
Hili: I do not believe in God but sometimes life is divine.

1743651_10202740046809603_5In Polish:

Małgorzata: Co tak głośno mruczysz?
Hili: W Boga nie wierzę, ale czasami życie jest boskie.

Darwin’s pet tortoise

February 12, 2014 • 4:24 pm

by Greg Mayer (addendum below)

Darwin lived in the country, and had many animals– for companionship, work, and research. For companions, his chief pets were d*gs (my favorite of Darwin’s d*gs was Bob), but he also had a tortoise that he brought home from James (Santiago) Island in the Galapagos. It has been claimed (most notably by the late Steve Irwin of Crocodile Hunter fame) that this tortoise later made its way to Australia, where it was named Harriet and lived to be about 175 years old. I always thought this story had dubious links in its chain of evidence, and Paul Chambers, in A Sheltered Life: The Unexpected History of the Giant Tortoise, after an exhausting examination, considered the story untrue.

A Galapagos tortoise from James (Santiago) Island, once owned by Charles Darwin. BM(NH) 1874.6.1.6, formerly 37.8.13.1.
A Galapagos tortoise from James (Santiago) Island, once owned by Charles Darwin. BM(NH) 1874.6.1.6, formerly 37.8.13.1.

Unbeknownst to me, four years ago Aaron Bauer and Colin McCarthy revealed the true fate of Darwin’s tortoise: it’s in the Natural History Museum in London, which is pretty much where you would have expected it to wind up. Henry Nicholls in the Guardian, in a Darwin Day tortoise piece, reminds us all of this fact, telling some of the details of the specimen’s history and rediscovery.

McCarthy, at the time the herpetology collection manager, found it in a store room in March of 2009, while preparing a list of Darwin specimens in the collection. Its original registration number shows it was catalogued on August 13, 1837, so it lived only a relatively short while after getting to England.

I am not at all surprised that it turned up at the Natural History Museum, nor that it was lost track of. The big, older, museums have large collections, and earlier curation policies were not up to today’s standards. There’s an old story, perhaps apocryphal, that a British paleontologist once submitted a grant application to fund an expedition to the basement of the museum!

According to Nicholls, you get to see the tortoise as part of the “Spirit Collection Tour” at the museum. “Spirit” refers not to the departed specimens’ souls, but to their method of preservation: in spirits. (Such specimens are called  “alcoholics”, which causes some initial confusion when referring to them in front of a non-museum audience).

____________________________________________________________

Bauer, A.M. and C.J. McCarthy. 2010. Darwin’s pet Galápagos tortoise, Chelonoidis darwini, rediscovered. Chelonian Conservation and Biology 9:270-276. abstract

Chambers, P. 2004. A Sheltered Life: The Unexpected History of the Giant Tortoise. John Murray, London (American edition, 2006, by Oxford University Press, New York). OUP

Addendum: In response to a reader’s request, I append a photo of Bob (as well as much of the rest of the Darwin family) at Down House ca. early 1860s.

Darwin's dog Bob, lying on ground below window.
Darwin’s dog Bob, lying on ground below window.

Flower mimicry FTW

February 12, 2014 • 4:09 pm

We simply must have some mimicry for Darwin Day, for mimetic animals provided some of the earliest evidence for natural selection.

This picture, by the ace photographer Igor Siwanowicz, is of a flower-mimicking mantid.  The hornswaggled pollinators get eaten, of course.

Can you spot the mantid? 🙂

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From Twitter via Matthew Cobb ~

Giant tortoises FTW

February 12, 2014 • 3:10 pm

What better way to conclude Darwin Day than with some pictures of giant tortoises—not from the Galápagos, mind you, but an independently evolved case of island gigantism on Aldrabra in the Indian Ocean. The pictures come from biologist and reader Dennis Hansen from the Institute of Evolutionary Biology and Environmental Studies in Zurich. His explanation:

I’m currently stuck on Mahe Island, Seychelles, waiting for a nasty storm to clear so we can fly a tiny plane to Assumption & get over to Aldabra Atoll. It being Darwin Day, I thought I would share some non-avian wildlife photos with you, of giant Aldabra tortoises. Although not as morphologically diverse as their relatives on Galapagos, they nevertheless vary substantially in shell shape/size (even though the atoll last emerged from the sea only around 80,000 years ago, the most recent of many ‘versions’ of Aldabra). See attached for a selection of black & white photos (all done from digital colour images in Photoshop, using the Silver Efex Pro plugin from Nik Software). While I like giant tortoise photos in colour, I love the way black & white brings out the graphical qualities, and how it seems to underscore just how large they are.

If you like giant tortoises, art, islands, rewilding, or combinations thereof, you can also check out our art & science project.

Cheers & happy Darwin Day!

You can read more about this species (Aldabrachelys gigantea) here.

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Aldabra3

Aldabra4

Podcast with The Thinking Atheist

February 12, 2014 • 2:24 pm

I much enjoyed my 1.25-hour interview with Seth Andrews, the “Thinking Atheist”. As you know, he used to be a dyed-in-the-wool Christian and broadcaster of Jesus stuff, but became an atheist. He now runs one of the best godless podcasts around.

Last night we talked almost solely about evolution, with Seth throwing creationist objections at me and asking me to respond. There was then about a half hour of reader call-ins, several of which weren’t really questions but “testimonies.” (I’ve learned that atheist radio broadcasts often have callers who just want to recount their “deconversion” which is fine, because I understand how important it is for them to find affirmation.)

The interview has been slightly edited and now posted for posterity; you can download it here but it’s also on YouTube, which I’ll embed below.

Seth was great.

h/t: Amy