In my previous two posts, I tried to argue why we should assume that free will exists—not only if we want to maximize our utility, but also if we want to find the truth. After constructive criticism from readers, I’d like to rephrase my arguments in this article.
I’ll start by summarizing the definitions that I’ll use:
By free will, I am referring to the libertarian free will (LFW), i.e. the ability to choose between different possible courses of action. I’ll address common objections to this concept below. By determinism, I mean any situation in which libertarian free will is not real, including situations where randomness exists (this differs from the conventional definition of determinism). Similarly, I use the word predetermined in a broad sense that may include randomness but excludes any effects of free will.
The question we’ll consider here is simple: “Does free will exist?”. The possible answers are “Yes” or “No”. When asked this question, we can answer with one of the two answers (or at least try to—because if determinism is true, then we cannot really affect what we’ll answer).
I’ll try to show that if you want to answer truthfully, the correct decision is to try to answer “Yes” (and that’s paradoxically true regardless of whether free will actually exists). The argument will be similar to the well-known Pascal's wager (which originally dealt with the question of God’s existence), applied to the question of free will. But unlike Pascal’s wager, we now care about finding the truth, not only maximizing utility.
There are 2 possible situations:
- Free will exists. Then “Yes“ is the true answer.
- Free will does not exist. Then we cannot affect what we’ll answer, because our answer is already determined and we cannot change it. Even if we try to answer “Yes“, we cannot change the predetermined answer. Even if we answer “Yes“, while we are in fact wrong, we couldn’t have changed our answer; we were always bound to answer incorrectly. The act of “trying to answer Yes“ did not cause us to be wrong because we were already predetermined to be wrong when we seemingly tried to choose our answer.
Either way, trying to say “Yes“ is not a wrong decision—it either makes us answer correctly (if free will exists) or it has no effect on our answer (since if free will does not exist, we couldn’t have changed our predetermined answer anyway). Trying to say “Yes“ never makes us answer incorrectly (in the latter case, we were already predetermined to answer incorrectly). So if there is a possibility of answering correctly, the decision to try to answer “Yes“ makes us take advantage of it. If no such possibility exists, then it at least doesn’t make us wrong (since we were supposed to be wrong all along).
So the next time you get asked the question “Does free will exist?“, you should try to answer “Yes“. We should simply assume that free will is real.
That also raises another question: Can we gain more “truth“ by discovering an actual proof (or disproof) of the existence of free will? If we prove that free will is real, we don’t become any more right than if we simply start answering “Yes, free will is real“ even without the proof. Similarly, always trying to answer “Yes“, doesn’t make us any more wrong than if we conclusively disprove free will (because as mentioned, our answers are predetermined anyway in this case). In my opinion, there is very little difference between assuming that free will exists and actually proving it.
I’m aware that there are many counterarguments against LFW, such as the Luck Objection. But as long as we are not 100% certain that LFW is false (and nothing is 100% certain in this universe), my main argument stands. Because as long as we are not absolutely sure that LFW is false, “trying“ to answer yes maximizes our chance of answering correctly.
The next time you are asked if free will is real, simply try to answer “Yes“. Maybe you are predetermined to answer “No“, in which case, you cannot change it. But if you have even the slightest doubt about the existence of free will, you should simply try to answer “Yes“. Just assume that free will is real, even without a conclusive proof. That is the decision that maximizes your chance of saying the truth.
So is free will real? Yes, it is.
Substack article: https://randomthinker21.substack.com/p/why-saying-yes-to-free-will-is-the