The Big Bang raises a big question: if it was this cataclysm that caused the existence of our universe 13.7 billion years ago? Researchers at Three Perimeter Institute have a new idea about what could have happened before the Big Bang. What is perceived as the Big Bang, they propose could be the "three-dimensional mirage" of a star collapsing into an in-depth universe different from ours. Conventionally it is argued that the Big Bang started with a singularity - an incomprehensibly hot and dense space-time phenomenon where standard physics laws spoil. The problem, as the authors see it, is that the Big Bang hypothesis holds our universe as relatively understandable, uniform, and reliable to come from. of the madness of a singularity. It seems improbable. Your suggestion: our universe could be the "three-dimensional envelope" around the event horizon of a black four-dimensional hole. In this argument, our universe erupted when a star in a four-dimensional universe collapsed into a black hole. In our three-dimensional universe, black holes have two-dimensional event horizons - that is, they are surrounded by a two-dimensional boundary that marks "the point of no return." In the case of a four-dimensional universe, a black hole would have a three-dimensional event horizon .They establish a parallel with the allegory of Plato's cave, in which prisoners spend their lives seeing only the flickering of the shadows produced by a fire on a wall of the cave. "Their shackles have prevented them from perceiving the true world, a kingdom with an additional dimension," they write. "Plato's prisoners did not understand the powers behind the sun, as we do not understand the four-dimensional universe, but at least they knew where to look for answers."
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