@Mr Bee Living in a deterministic world would suggest that everything that is going to happen is already determined. That everything(almost everything) in this universe happens according to our laws of physics does not mean that everything is determined. Quantum mechanics predicts the chance of a particulair event. For example if one is about to measure the position of an electron, quantum mechanics can predict the chance you will find the electron in lets say position x. It is impossible to predict exactly what will happen. Not because the theory is incomplete or a because of a lack of information. It seems that this is how nature works, which would suggest that the universe is nondeterministic.