Tag Archives: arrow of time

Book Update: The Bowstring, Twanged

 

Stephen Hawking, in his book A Brief History of Time, lays out three different ways that humanity perceives time. The first is psychological–we perceive that time moves from past to future, because we remember the past but have no knowledge of the future. The second is thermodynamic (or entropic)–our perceived state of the the physical world is that things move from order to chaos, so that as time moves forward, entropy increases. The third is cosmological–time moves in a direction we’d call “forward” as the universe expands and “backward” as the universe contracts. Physicists generally call this flow “the arrow of time.”

The process of writing a book has been, for me, a long sit-down with the arrow of time wedged firmly between my shoulder blades. Continue reading

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