White Holes have been the missing piece of the Universe puzzle ever since Einstein proposed the Theory of General Relativity.
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On paper, they are supposed to be the exact opposite of a black hole, at least in terms of time. While matter around a black hole cannot escape it and is destined to be devoured by the concerned cosmic goliath, matter around a white hole would not only be repelled by it but most likely originate from it.
This begs the question, what if the Big Bang was a supermassive white hole? And if so, what does this mean about the origin and expansion of the universe?