Practically leading my life as if I had free will and being convinced I actually do have free will – despite zero evidence either way other than my senses and my reasoning, both of which regularly fail/deceive me in all kinds of situations – are two very different things.
There's of course also a variant of Pascal's wager in here, except that this one is logically sound, in my view: If there is free will, why not make use of it? And if there isn't, my beliefs aren't my choice anyway.
And just like from Pascal's wager, we can't derive any actual information about the nature of the universe and our conscious existence in it from that line of reasoning.
