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Nick
The universe begins as a singularity of space and time in the form of an hypersphere. At Time Zero gravity would be at its maximum. This means time would be going slow: maximum curvature. But if the universe expanded time would speed up as the gravity of it decreased. The Big Bang might have been slow when you take the gravitational time dimension into account.

The inflation of the universe happened at time zero in order to get the Big Bang over its own gravity. biggrin.gif

Gravity is a continuum. tongue.gif
Nick
The Big Bang's gravity like that of a black hole was maximum. Time would have started infinitely slow in the singularity and as it expanded gravity would drop and time would speed up. I believe that inflation began at Time Zero in order to get the universe over its original gravitation otherwise we would be stuck witha Big Bang Black Hole without any possibility of escaping the power of its own gravity.
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