Thread: Before Bigbang
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Mar30-07, 02:50 AM
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Not by physics as currently known. We hit the wall at one planck tick after the putative big bang - i.e., current theories cease to have any predictive value before that point. On the brighter side, our theories are astonishingly predictive thereafter. The reason for this has much to do with our inability [to date] to derive a workable quantum theory of gravity. While such a theory may not necessarily unlock the gate to what lays beyond the planck wall, it should at least illuminate the keyhole. In some branches of theory, the big bang is not a 'true' beginning, but rather a single 'bounce' in an indeterminite [infinite?] series of bounces. Some find that comforting, as it avoids the creationist overtones lurking behind the 'universe from nothing' proposition. But no variant of the 'bounce' proposition [at least AFAIK] grants us access to prior bounces. The information contained in previous cycles is utterly annihilated in the process. To me, that seems like an overly complicated way of arriving at the same conclusion - what came before the big bang has no observational consequences in our universe - which is the same as saying it is not testable, hence unfalsifiable, hence of little, if any, scientific value.