Here's a weird thing. I don't think I have free will. And yet, if I exceed a legal speed limit while driving, I can understand that there are still good reasons why I would need to be held accountable and accept that I should get some form of penalty. You think I'd be saying, 'But it's not my fault, let me off!'. Go figure.
Why should you be held accountable? You couldn't have driven the speed limit no matter what - it's entirely outside of your control. You had no choice in the matter, and there is no possible way that you could have done anything other than exceed the legal speed limit.
Why should you be held accountable for something over which you have absolutely zero control?
For one thing, why shouldn't (or better still, wouldn't) I be held accountable? If I wasn't, then that, and not a lack of belief in free will, is arguably exactly what
would probably have adverse consequences for the functioning of human society. It's what self-policing, decision-making, biological-machine agents with learning algorithms (or the equivalent) would be 'progammed' to do, when immersed in a competitive environment. Not entirely dissimilar, in principle at least, to many other species. Possibly because overriding almost everything else is a survival instinct, and for social species, a collection of 'fairly hard-wired' (though perhaps somewhat flexible) group survival instincts. That there would be 'group rules' would be virtually inescapable dare I say inevitable, and conforming to them would arguably be an evolutionary/survival advantage, regardless of whether anyone actually had the control they thought they had or not.
Why do you think it is acceptable to hold people accountable for things over which they have no volition? If a baby cries in a quiet room, you don't hold the baby accountable for crying - it's not something they can control. If a physically disabled individual drops a plate and it breaks, we don't hold them accountable for not having good physical skills - it's not something they can control. If a bird poops on your windshield, you don't hold the bird to blame for it - they have no control over that bodily function. You don't hold a gay person accountable for liking the same sex, you don't hold a short person accountable for not being able to reach the top shelf, you don't hold a black person accountable for social stereotypes, and you don't hold a ginger accountable for having no soul
. In general, we as a society and a species, give dispensation to people who arguably have no choice in a situation.
Self-policing is only logical when self-policing can alter a decision. But in a fully deterministic schema, that is not possible - a decision cannot be altered, because that decision is the only decision possible for that person at that time. Self-policing, then, is an illusion that accomplishes nothing except to introduce a feeling of guilt onto a person for something over which they have no control.
By a similar token conforming to group rules is a meaningless concept in a deterministic view. Group rules, and expected conformation to them, is only logical when the entity has a choice of whether or not to conform. If the entity has no choice, then they aren't rules, and conformity is meaningless - an entity will either conform with an illusory construct of social contract, or they won't, they have no power and no agency to do other than they actually do. There are no alternatives available. And since there are no alternatives available... that makes group rules themselves a shared delusion.
I can only again recommend you to go read more about it (if you're sufficiently motivated). The suggestion that a dramatically decreased belief in free will* (or an acceptance that we don't have it) necessarily would or does result in the dire consequences you suggest is basically a potential red herring. Losing a belief in free will might throw us a bit of a curve ball, but I reckon (putting my optimist's hat on) humans can gradually cope. That said, there may be downsides as well as upsides, and we should imo probably not instigate or recommend any dramatic social changes while the scientific understanding is still fledgling. We can, imo, already incorporate the likelihood nonetheless into our own thinking and into our personal relationships. In fact, there's arguably no honest way not to, once the realisation of the likelihood has occurred.
Compatibilism (although I think it uses the wrong term when it refers to 'free will') seems to offer one of the best, most pragmatic ways to deal with the issue socially, even if not the only one (Sam Harris is an avowed non-compatibilist afreewiller and his prognosis and that of others like him, such as Jerry Coyne et al, is very similar to that of compatibilism). Complex and sophisticated human capacities for agency, even if they are not in fact free from prior causality (determined and/or randomn) are deemed 'sufficient', in their decision-making and learning functions, to warrant allocating 'proximate' causal responsibility, albeit under a new understanding and one which would, for example, imply less need or justification for retribution, and more compassion, understanding and forgiveness, and a greater emphasis on tackling prevention and rehabilitation/cure (machines fixing broken machines) than on punishment (though there would still be penalties, possibly even severe ones if necessary), possibly, putting my optimist's hat on again, for the betterment for the world, possibly even the physical world, not just humanity (it has been said that a strong sense of our own free will may lead us to think we can manipulate and dominate nature with impunity).
If humans have a capacity for agency, then they have free will. Introducing, again, the strawman of "free" with respect to will implying that it is free from prior causality is irrelevant. Look - there's a difference here that seems to get lost. A non-linear stochastic outcome set can still be subject to prior cause. Free will doesn't mean that there is no causality - that's just plain silly. Free will does, however, mean that the
next step is not deterministic. It means that the prior causes produce a set of options available to the agent, and that those options can be chosen based on reason, emotion, or at random. The only thing that free will actually means is that the set of options at a decision point can be a set with more than one element in it. A deterministic view implies that for each illusory decision point, there is one and only one next step available. That is what it means. One input --> one output. Therefore, in a deterministic schema, there is no choice, no agency, no decision.
Prevention has no particular meaning in a deterministic framework. Prevention as a concept requires that the entity be able to extrapolate a set of possible consequences for an outcome, select the desired outcome from within that set, and take purposeful effort to achieve the desired outcome. But a deterministic framework eliminates the SET from consideration. In a deterministic framework, there is one and only one possible consequence and there is one and only one possible action. No other options exist - no other actions are possible. There is no set. Prevention becomes an illusion.
That said, it is true that the belief (which likely involves illusions) is very deeply-embedded (which, along with consequences, is not something I don't consider). I personally can only find it intellectually possible to readily accept. Emotionally and instinctively, it's much harder. It's a mindfuck outcome of Socrates maxim for life, 'know thyself'. Who knows, maybe future generations will not find it so difficult to integrate into their hopefully more sophisticated and enlightened worldviews. But in any case, I don't think that possible consequences are a good reason to deny the likelihood of it actually being the case. And that's true for me regardless of the wider outcomes, which to me are a secondary issue (not least because I'll likely be dead before they develop very far). I didn't not become an atheist because of possible adverse consequences and so I can't rationally not do it for afreewillisim either, at the end of the day. Which is why, up until you raised it, I did not opine much if at all on possible wider consequences.
If you acknowledge that the set of possible consequences is an input into a decision... then you are implicitly accepting free will as legitimate. Without free will, there are no "possible" consequences from which to select - there is only one path. You frame the entire discussion here in terms of innately non-deterministic concepts. Likelihoods, possible consequences, accountability, prevention, agency, decision-making... all of those depend on free will in order to have any meaning. In a deterministic framework, every one of those concepts would have to be illusions. Your entire argument is based on illusions in an attempt to convince people (who, lest you've forgotten, have no agency or choice anyway) to cast aside the illusion of free will. You implicitly appeal to free will when trying to convince people that free will doesn't exist.
So if you were hoping for something less subtle, more dramatic and immediate to reignite your interest, I'm sorry to disappoint. You can repeat what you said about it having no great implications for how you live your life tomorrow or next year. Carry on as you were. I'm fairly sure you weren't about to go out and murder someone and then try to get off scot free anyway.
And as for losing interest specifically because of a ding dong about definitions. I agree.
I was never going to go out and murder anyone... because I'm pretty well convinced that I have control over my actions, and that I can freely decide what I do, and I can weigh the immediate gratification of setting a bad neighbor on fire against the long-term consequences of jail time and loss of freedom and make an informed choice about what is most likely to produce the best outcome from within a set of possible actions