It's a truth, and before you go
>LOL QM DISPROVES DETERMINISM U FUCKING MONGOLOID
I'm not arguing for determinism, i'm simply arguing that the will of a human is out of their control and is only made by the environment surrounding the person, not the person themselves.
Here's a thought experiment.
We have 2 identical persons, person A and person B.
Both of them are perfectly identical, so flawlessly mirroring eachother that you could not tell the difference.
Now, if we keep person A in the normal world and we transport person B to a world ruled by aliens and then fast forward 10 years, you can clearly see that the idea of free will crumbles.
Person A and person B will end up completely different people, while person A is a pacifist and owns a flowershop, person B despises his alien overlords and just started a resistance.
Of course this is a very extreme example, but this type of logic has nothing preventing it from applying to smaller things.
If it were really hot right now you would probably be more cranky, and if it were colder, you would probably feel more timid. Both of these can affect decisions you make and can possibly lead to a sort of butterfly effect, which could probably change events in your life drastically.
The last bullet that people try to fire into this argument is that it's morally wrong in that it is basically an excuse for criminals to be criminals because they "couldn't be anything else"
This argument is weak, as it's only arguing from a human moral standpoint, which the laws of physics give less than 1 fuck about.
I'm not arguing that criminals shouldn't be locked up, i'm just saying free will is nonsense through our current understanding of the world.