High Quality Content by WIKIPEDIA articles! Determinism is the general philosophical thesis that states that for everything that happens there are conditions such that, given them, nothing else could happen. There are many versions of this thesis. Each of them rests upon various alleged connections, and interdependencies of things and events, asserting that these hold without exception. The wide variety of deterministic theories throughout the history of philosophy have sprung from diverse motives and considerations; some of which overlap considerably. All should be considered in the light of their historical significance, together with certain alternative theories that philosophers have proposed. At the same time, some forms of determinism may be empirically testable, and this page mentions some relevant ideas from physics and the philosophy of physics. The opposite of determinism is some kind of indeterminism (otherwise called "Nondeterminism").