Laplace’s demon knows all forces and “positions of all items of which nature is composed” and enjoyed the knowledge of the future just like the past to be “present before its eyes”. Acording to Wikipedia, also the source of the first quote, “Due to its canonical assumption of determinism, Laplace's demon is incompatible with interpretations of quantum mechanicsthat stipulate indeterminacy”. But is that really so? Isn’t it the case that, on the contrary, quantum physics assumes classical physics in every respect? Uncertainty of a particle’s position and energy assumes that such quantities exist (although they can’t be ascertained by non-demon entities). Is not then the conclusion that Laplace’s demon still has the same privileges, although the demon idea is of less practical value to us?