Time is obvious and everywhere. It just is.
But it’s also one of the deepest mysteries of all time. Saint Augustine famously said: ‘What then is time? Provided that no one asks me, I know. If I want to explain it to an inquirer, I do not know.’
Nowadays, when someone asks the question, what is time, it’s usually answered by a quantum physicist who goes into theories of spacetime, time crystals, black holes and such. But this article will not go in that direction. . . .
What is time?
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