ryan
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Suppose we have an exact mechanical replication of an instance of someone's will. Now let's replace "will" with "decision" to stay consistent with scientific terms (still in philosophy but using scientific definitions). So we have this amazingly complex machine that we isolate in an environment where all variables are controlled except for one. Then we stimulate the input that is not fixed, and we get X. Assume we do the exact same thing again, except this time we get Y.
Upon further inspection, we see where the signals changed course. We narrow it down to a very small area that depends on the state of the synthetic microtubules. They are presumed to be in a quantum state, thus breaking the symmetry of what we would expect if the machine were following classical mechanics.
So, hopefully you can see that the microtubules did not make the decision; but instead, they were part of the decision. We may be adding an indeterminate property to the decision, but we are not adding the mechanism to the decision. Many other elements in the machine help make the decision.
Yes, of course. But the question is: what have this to do with libertarian free will? LFW says that YOU are free. Not that there are trillions of free nano-yous
It also eludes to the idea that I could have chosen differently. I may be limited to choosing A or B, but at least that is a free choice due to random mechanisms that make up the choice.