Scientists search for causes. They search for an explanation in terms of an efficient cause.
Causality or causation denotes the relationship between one event (called cause) and another event (called effect) which is the consequence (result) of the first. A cause is something that brings about an effect. An effect, by definition, is something that has been caused by something else. A cause cannot be a cause unless it produces an effect. Thus, “All causes have effects and all effects have causes.” If something can be shown to be an effect, then the necessity of a cause has been established. The very denial of causality implies a necessary causal connection in the thought process. Without assuming a necessary basis (cause), the denial is meaningless. Indeed, to deny the principle of causality is to deny rationality. We put together thoughts (the causes) that result in conclusions (the effects). So if anyone says they don’t believe in the principle of causality simply ask that person “What CAUSED you to come to that conclusion?” Some have said that quantum mechanics has invalidated the principle of causality. But if quantum mechanics invalidates the principle of causality it is also self defeating. Quantum mechanics (the cause) has invalidated the principle of causality (the effect). So, it’s impossible to have an uncaused effect, because an effect, by definition is something that has a cause. To say there is an uncaused effect is to make a nonsense statement.