arrow of time
The 'arrow of time' is a concept that describes the unidirectional flow of time from past to future, primarily observed through the increase of disorder in the universe.
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Definition
C1Physics
(technical, academic)The concept that time moves in one direction, from past to future, characterized by increasing disorder in a closed system.
Example
- The melting of ice into water is an example of the arrow of time, as it moves towards a more disordered state.
C1Philosophy
(academic)The perception of time moving forward, experienced as the transition from past events to future possibilities.
Example
- Our memories are a reflection of the arrow of time, as we can recall the past but not foresee the future.
Similar
Terms that have similar or relatively close meanings to "arrow of time":