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 Hawking Copy Share Image
“Time goes forward because energy itself is always moving from an available to an unavailable state. Our consciousness is continually recording the entropy change in the world around us. We watch our friends get old and die. We sit next… — Jeremy Rifkin Copy Share Image
