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The Big Bang versus the 'Big Bounce'

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According to Einstein's (classical) theory of general relativity, space is a continuum. Regions of space can be subdivided into smaller and smaller volumes without end. The fundamental idea of quantum mechanics is that physical quantities exist in discrete packets (quanta) rather than in a continuum. Further, these quanta and the physical phenomena related to them exist on an extremely small scale (Planck scale). So far, the theories of quantum mechanics have failed to 'quantise' gravity. Loop quantum gravity (LQG) is an attempt to do so. It represents space as a net of quantised intersecting loops of excited gravitational fields called spin networks. This network viewed over time is called spin foam. Not only does LQG provide a precise mathematical picture of space and time, it enables mathematical solutions to long-standing problems related to black holes and the Big Bang [Big Seed].

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whether humans are discrete or continuous. And i... by Gentry L Rowsey on Monday, Jul 9, 2012 at 5:54:31 PM