These disproofs are completely missing the point. Laplace says: the laws of nature are deterministic. The answers are: there is free will in the human mind. It'

These disproofs are completely missing the point. Laplace says: the laws of nature are deterministic. The answers are: there is free will in the human mind. It's no proof, these are just contradicting metaphysical statements. A disproof that may make more sense though is to say that: in order to be able to write the equations and know the state of the entire universe, the universe itself cannot be infinite. Let's assume the total information of the universe at time t could be represented by a N bits. Then in order to exist and to calculate things, the demon needs to materially represent these N bits by at least N elementary particules. But this means that the state of these particles also needs to exist in the universe, and so the universe plus its representation would be represented with at least 2N bits, which is bigger than the size of the universe. So the demon cannot exist. In fact this is just saying the only device capable of predicting the future is the universe itself, and its prediction is the realization of the present itself.