You seem to be arguing not only that physics does not yet know everything (which is obvious), but that physics cannot in principle know everything, because that would contradict free will.
i mean that science cannot answer the question of free will because free will violates both possible states of the universe, both determinant and indeterminant, not because that would violate free will in some way. in violating both possible states, i mean that physical causation of free will is not possible under either scheme. ergo, as science only deals with empirical data it cannot, by its nature, answer any question where all possible physical answers, can be eliminated.
the normal reply to this conundrum is the claim that free will does not exist. however such a claim presents its own problems. namely that the untold trillions of free will decisions human beings make every hour, and the associated motion of particles would need to be arranged prior to the systems start in the deterministic scheme, or be completely random in both schemes. though of course, we cannot prove the uncountable number of free will actions and associated particle motion are not random. but such a trusting position seems unreasonable. though i freely admit, it is not mathematical proof.
in metaphysical libertarianism, this means that the regularly accepted idea, that the universe is a closed system, is incorrect, and that the physical universe is open. which is why i made the comment concerning physics.
If God can know what I will do before I do it, yet I have free will, why is it that physicists being able to write down unsolvable equations that will predict what I will do (either with certainty or probabilistically) contradicts free will?
G-d doesnt know what you are going to do prior to you doing it. His knowledge is concurrent with your decision, in fact all change is concurrent in the temporal sense. what i mean is that ‘time’ does not exist except as a measure of the change around us. as counter intuitive as it may seem time isnt necessary for change to occur. it is important to realize that the change being measured by the arbitrary standard we call ‘time’ is the progressive view of cause and effect, or causality. we do not need steady intervals in order to track change, it is simply more orderly than to do so by the varying intervals of cause and effect, as a cause and an effect can be separated by an attosecond, or the lifetime of the universe. (read, any amount of change)
God made the rules of the universe. Physicists are just trying to figure those rules out. The fact that universe has rules does not contradict free will. I don’t know if mankind is smart enough to be able to figure out those rules, but figuring them out or not doesn’t change that the rules exist.
you shouldnt read that i dont like physics or science, i enjoy both very much actually, but i recognize their limitations.