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Quantum mechanics and the Big Bang
Physicists are trying to explain what happened at the time of the Big Bang. If Einstein's equations are run backwards in time using a simplified model of the Universe, a singularity is the result. At the singularity, the Universe is a single point where gravity fields and energy densities are infinite. As a result, predictions of what was happening at this time are not currently possible.
Quantum mechanics may hold the answer to what happens during a singularity.
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