“Free will” does not exist because the world is deterministic. In other words, if you have made a decision, you couldn’t have made any other decision, so there wasn’t any choice in the first place. A persons IQ has nothing to do with this.
I always get stuck with this. That yes, I could not have made any other decision, but that decision is still mine to make.
It's like being able to predict what someone is going to do, because you know them and how they think, and what decision they will make when presented with the choice, doesn't stop that from being their choice.
The universe may be deterministic, but my personality is still my personality. It is encoded into the chemical make-up of my brain, and so that complex chemistry behaves in ways that align with my personality. My personality is shaped by my previous experience, but it's still my personality. I still choose, even though the universe can predict all of my choices, because the thing I do the choosing with is part of the process.
And this seems very like the argument about intelligence and instinct. If I respond in a certain way to an event, is it because I am intelligent and "thinking" about my response, or is it instinctual and coded into my meat to respond this way? How would I tell the difference?
Same with free will, how would I tell the difference between a choice I freely made and one I didn't?
One may object that at the quantum level, the world really is nondeterministic. Epicurus also argued this over 2000 years ago - that sometimes atoms "swerved" unpredictably in their movements, accounting for free will. Of course, the counterpoint to this argument is that randomness is not free will any more than determinism is; neither offers any space for agency as something that's causal rather than just experienced.
Yes, the entirety of the math behind it which says that various quantities are unknowable except as a distribution of probabilities. Various experiments have shown these formulas to be 'real', as in, the alternative deterministic version is untenable unless you make new and equally disturbing assumptions.
Sorry if I’m being ignorant, but let’s say you measured a qubit and it collapsed to a certain state. Now, hypothetically, if you rewind the time and re-measure it, would it collapse to a different state? I think it wouldn’t, and in this sense it is deterministic.
You would see a different state. Quantum mechanics is random. It is possible that there is hidden state that determines the outcome, but there is Bell's Theorem that limits local hidden state and it has been tested by experiment.
I think you just assumed the result. With quantum mechanics, a and b will be different if could rollback time. Or if made the same measurement with the exact same state.
Quantum mechanics is indeterminate and probabilistic. Some of the most brilliant physicists like von Neumann and Bell, who won the Nobel Prize for this work, have proved it. Unless you have something that will win the Nobel Prize, your intuition is wrong.
“Free will” does not exist because the world is deterministic. In other words, if you have made a decision, you couldn’t have made any other decision, so there wasn’t any choice in the first place. A persons IQ has nothing to do with this.