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army1987 comments on [Poll] Less Wrong and Mainstream Philosophy: How Different are We? - Less Wrong
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It does have an origin (the Big Bang) if you will, but that's not the kind of origin you'd need for A-theory to make sense.
Right, A-theory's origin has to be 'the present moment'. I think A theory probably even excludes the possibility of a beginning of time (Hawking once wrote an article in which he had to coin the phrase 'imaginary time' to discuss the question of how long ago the big bang was). I'm sure that's not an uncontroversial claim though.
This may seem like a kind of fringe metaphysical concern (and it's certainly a metaphysical concern), but I think the question of the reality of change is probably the original philosophical problem.