people might hate me for bringing science but i'm still gonna do it.
according to clasical physics, if you know the location and velocity of every atom in the universe, you can predict the future but calculating how the atoms move and interact using the laws of physics. however in quantum mechanics theres something called the heisenberg principle of uncertenity that clearly states that you can know the location of an atom or the velocity of it, but never both at the same time. meaning that predicting the future is impossible, the laws of physics actully claim by that that YOU CAN'T KNOW EVERYTHING, you can always be wrong.