Caricaturing free will

In March 2012 Sam Harris released a short book on free will. The reception was mixed. Especially philosophers  dismissed the book as shallow and misguided. Daniel Dennett published a derisive response to it, which Harris posted and replied to on his blog. Meanwhile, there are still those who think the book is a valuable contribution to the debate on free will. I think that is worrisome, because Harris misrepresents the free will debate and the strength and context of scientific evidence. In this post I list three major problems with Harris’ book and take on free will, also going by his blog posts on the subject.

Problem #1: defining free will by a particular position on free will
When investigating free will, philosophers are considered with the following question: “Is our will free in any meaningful way?”. Nothing more, nothing less. The question has been debated since the very beginning of western philosophy (albeit, in different terms) and throughout the historical debates many positions have been developed. Metaphysical libertarianism is merely one of these positions. Unfortunately, this is the position Harris caricatures only to present it as the canonical definition free will. He then attacks this caricature in order to dismiss the entire domain of inquiry. Here is an analogy with another field that might make clear why that is problematic. If you are unfamiliar with quantum mechanics, suffice it to say that the interpretation of quantum mechanics is a contentious issue. Physicists are divided on it. Here is a bar graph of the division:

Interpretations of Quantum Mechanics

Imagine Sam Harris were to write a short book on quantum mechanics in which he would equate the Copenhagen interpretation with quantum mechanics as a whole. Imagine he would set out to debunk the Copenhagen interpretation, to then claim quantum mechanics itself is debunked. He would insist that quantum mechanics is not coherent, because one interpretation isn’t. And that those who believe in it are simply trying to hold on to their intuitions. He would suffer the same well-deserved derision from physicists as he has suffered from philosophers for his free will book, were he to go by such a premise, for it would be a very odd thing to do, to say the least. He would not be able to honestly say that quantum mechanics is just a non-starter, philosophically and scientifically. Yet this is what he has done referring to free will:

Do we have free will? Answer: no. “The problem is free will is just a non-starter, philosophically and scientifically.”

As it happens, only 12% of philosophers identify (Survey from 2009) with libertarianism. And these are sophisticated technical positions, not the caricature Harris presents in his book. They are neither dominating nor historically primary. Sam Harris writes as if he has debunked free will: “Free will and why you still don’t have it” is one of his blog post titles. Yet he has done no such thing. His engagement with the literature constitutes briefly mentioning compatibilism and psychologizing some of the associated positions as attempts to justify the mere feeling of being a freely choosing agent, while still not being one. These attacks on a caricature of a single position on free will, cannot, in principle, invalidate the possibility of our will being free, as Harris would have us believe.

Philosophers on free will

Problem #2
: intuitions on folk intuitions
Sam Harris justifies his caricature with the claim that it is what most people believe. Is it? This paper investigates precisely that, and it turns out people’s intuitions on free will are not that straightforward and naive.  Sam Harris tells us what people believe, but never justifies why he believes this is what people believe. This seems to be nothing beyond his intuition about people’s intuition presented as fact. What is actually the case is that what people believe regarding free will depends on the context. Confronted with specific scenarios, people will display strong tendencies to believe in a folk version of hard determinism, rather than magical and “uncaused” will. Such information are entirely absent from Harris’ writings. So contextualism about free will is another ongoing contemporary debate in philosophy Harris ignores. This is convenient, as mentioning this would only make tearing down his caricature of free will more difficult.

Problem #3
: cherry-picked literature
Not only does Harris barely engage with the literature, he cherry-picks literature, which he then presents as evidence for his view. The Libet papers from the 80’s are classics, but there has been an ongoing debate on these type of experiments and follow-up research for decades since then. Yet Harris mentions two papers that seem helpful to advance his view, and says virtually nothing about the objections. Libet’s veto caveat is called “absurd” early in the book, without little further discussion.  In fact, this is the tone throughout the rest of the book, which is marked by Harris’ perpetual bewilderment: “I cannot imagine”, “I do not know”, “It just happens”, etc. Unfortunately, to know what he does not know, cannot imagine or finds absurd, is not very helpful to build any argument.

The problem with this whole setup is that it misrepresents the debate. It’s not a fair depiction of the issues, and writing for a lay audience is no excuse. Moreover, cherry-picking science to bolster this shallow narrative doesn’t do science any favors. Harris gives the impression that the classic papers and the follow-ups are compelling evidence for his case, when in fact there is compelling literature exposing holes in the setup and assumptions of typical free will experiments. Mentioning and discussing these is the bare minimum for any remotely serious work on free will.

To read or not to read?
Harris’ book will not provide you with an education on free will. Nor will it provide you with a strong case for any particular position in the free will debate. There is no “redefining free will”, as free will is not yet defined. A coherent definition is what we’re after. If you’re not familiar with the literature, do yourself a favor and read the entry on free will at the Internet Encyclopedia Of Philosophy, the entry at the Stanford Encyclopedia or even the Wikipedia entry on free will. You will learn more from any of these than from all of Harris’ blog posts and his book taken together.

  1. Pat Churchland
    Pat ChurchlandAugust 13,14

    Many thanks for your thoughtful criticisms of Harris’ book. From my perspective, these criticisms are dead on the mark. Unfortunately, Harris’ book on morality displays exactly the same kind of weaknesses, and is not really worth reading.

  2. Pawel
    PawelAugust 17,14

    Thank you, Patricia.

  3. Thomas Bradley
    Thomas BradleyAugust 27,14

    The problem here is that you, Denett et al. are using an Ivory tower definition of free will which nobody in the real world really identifies with and this is the source of your confusion.

    I haven’t looked at the study you have mentioned, but from the layman’s perception of the concept of ‘free will’ seems to be, is much closer to the ‘metaphysical libertarianism’ that you mention.

    So in essence, you are attacking Harris for adopting a parlance which is much more in tune with the common people than the esoteric rarefied lexicon adopted by modern day academic philosophers.

    But this is a misguided complaint because Harris was not writing for Ivory tower philosophers but rather the common man and woman who have no troubles understanding his meaning when he uses the term ‘free will’

  4. Thomas Bradley
    Thomas BradleyAugust 27,14

    In regards to the Nahimas paper scenario 1, the evidence is not clear at all, and does not necessarily support a compatibilist conception of human intuition:

    Concentrate on figure 3 of the paper and the differences in response when the participants were asked whether ‘Jeremy has free will’ or whether ‘Jeremy could have acted otherwise’, There are many interesting points to take from this

    Have you noticed when Jeremy conducted a negative action there is almost no discrepancy between FW responses and ACO responses? Yet when the action is positive or neutral, there does seem to be a clear discrepancy?

    If the participants are acting rationally, there should be no difference in positive, neutral and negative scenarios. This suggests that participants may be emotionally biased to ascribe moral responsibility to individuals when they have committed a bad act, even if determinism is held to be true.

    This suggests that participants are responding to the questions in an emotional manner, and not necessarily in a rational manner in some instances.

    Furthermore, the majority of participants judged that Jeremy could not have acted otherwise in the neutral case (57%) and that he could not have chosen to act otherwise in the positive case (62%)

    Surely this is evidence for incompatibilist intuition and not a compatibilist lay intuition?

  5. Thomas Bradley
    Thomas BradleyAugust 27,14

    Another point about the first study:

    The fact that 67% of respondents stated that Jeremy could not have chosen to rob the bank demonstrates that a lot of students had either not accepted or taken determinism to be true in this scenario or were generally not responding in a rational manner. Logically, it would have been impossible for Jeremy to have acted otherwise

    Given this evidence it would be hard to say that the Nahimas study shows that the intuition of the layman is that of a rational compatibilist

    * I mean 67% said that he could have chosen otherwise (i.e. he could have chosen not to rob the bank)

  6. Thomas Bradley
    Thomas BradleyAugust 27,14

    The fact that a large majority of participants stated that Jeremy has free will does not in fact demonstrate that their folk intuition of free will is that of a compatibilist philosopher (because they could be responding in an irrational manner – there responses may be incoherent with their conceptions of ‘free will’ and their understanding of the thought experiment – they may not have understood the thought experiment at all)

    To assess their intuition about free will, why not just ask them to try and define ‘free will’ or ask them verbally what free will meant to them?

  7. Pawel
    PawelAugust 27,14

    @Thomas Bradley on August 27, 2014 at 10:14

    I’m afraid it is your complaint that may be misguided. Whatever Harris’ audience would be, he purports to deal with the issue conclusively. Writing for a lay audience does not excuse him from addressing important research on the matter. How could it?

    As for “ivory tower definitions”: again, Harris did not (merely) set out to clear up confusion in folk intuitions of free will. He writes we do not have free will in any meaningful way and we are not free in any meaningful way. He says this several times throughout the book and his blog posts. These are strong claims made in absence of strong arguments and strong evidence.

    Lastly and most importantly, he does mention philosophical positions and his blog post, as I quoted, says: “Do we have free will? Answer: no. “The problem is free will is just a non-starter, philosophically and scientifically.”

    Surely you agree he opened the door to criticism from science and philosophy with such a statement?

  8. Pawel
    PawelAugust 27,14

    Your comments on the studies indicate you seem to think I required that folk intuition to line up with compatibilist ideas. I never said any such thing. The point was exactly the one you make: it is more complicated than Harris purports it to be. And that aptly summarizes my evaluation on his treatment of free will.

  9. Peter
    PeterAugust 27,14

    I think the quantum mechanics analogy is effective. You can write a simple book on physics and ignore literature. You can’t however, dismiss a QM interpretation research and come to strong negative conclusions about the entirety of QM in that same book. Sam Harris threw out the baby with the bathwater.

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