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Re:Age of universe at 26.7B years, nearly twice as old as pr... by slt2021 on Friday July 14, 2023 @04:17AM (#36720865)
but there is law of mass preservation (and energy).

The big bang could not create universe from nothing, it could only spread matter from a singularity into ever expanding universe (time-space).

is it even possible, to have entirety of universe matter and energy in a single point?

Re:Age of universe at 26.7B years, nearly twice as old as pr... by jjk166 on Friday July 14, 2023 @10:46AM (#36724758)
Those conservation laws are part of the universe, and do not apply here.