Determinism is the philosophical movement that for every event, including human action, exist conditions that could cause no other event. "There are many determinisms, depending upon what pre-conditions are considered to be determinative of an event." Deterministic theories throughout the history of philosophy have sprung from diverse and sometimes overlapping motives and considerations. Some forms of determinism can be empirically tested with ideas from physics and its philosophy. Opposing determinism is some kind of indeterminism (otherwise called nondeterminism). Determinism is often contrasted with free will and moral responsibility.