Diff of Future at d4b4c7e

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-The future is the opposite of the [[past]], and comes after the [[present]]. Unlike the [[past]], which has [[happening|happened]], the future has not happened.
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+The future is the opposite of the [[past]], and comes after the [[present]]. Unlike the [[past]], which has [[happening|happened]], the future has not happened. This distinction is because of the [[thermodynamics|thermodynamic]] arrow of time: the future has higher (total) [[entropy]] than the past. It is often possible to infer the past from the present, but much more difficult to infer the future from the present.
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