Stephen Hawking about past (“A Brief History of Time”, 1988) - The increase of disorder or entropy with time is one example of what is called an arrow of time, something that distinguishes the past from the future, giving a direction to time.
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The increase of disorder or entropy with time is one example of what is called an arrow of time, something that distinguishes the past from the future, giving a direction to time.
 Stephen HawkingA Brief History of Time (1988). copy citation

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