Pre–Big Bang physics

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Pre–Big Bang physics, (PBBP) are physics which can be speculated to have existed prior to the Big Bang. PBBP may have been radically different from the current laws of physics.

Although theoretical speculation on possible PBBP have only begun, research into the field could hold incredible implications for the makeup of the universe, and numerous possibilities beyond the limit of the current laws of physics in possible existence prior to the Big Bang.

Stephen Hawking has said that "Since events before the Big Bang have no observational consequences, one may as well cut them out of the theory, and say that time began at the Big Bang. Events before the Big Bang, are simply not defined, because there's no way one could measure what happened at them."[1]

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