What is the nature of existence? When something exists, does it exist for all time, or do things come and go? Or does only the present exist. To quote Wheeler, "The past has no existence except as it is recorded in the present." But what is the present? When is now? Is now an incoherent concept? Is now May 27th 2012 when I am writing this? Or is now May 28th 2012 when someone else is reading this? Or 2040 when someone is reading this in an archive? If now is an incoherent concept, how is Wheeler's statement different from "The present has no existence except as it is recorded in the future."?
closed as off topic by Ron Maimon, dmckee♦ May 27 '12 at 14:55
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