Our Universe May Have Emerged From a Black Hole In a Higher-Dimensional Universe

Posted by on August 10, 2014 in Earth & Space, Sci-Tech with 0 Comments
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Our universe may have emerged from a black hole in a higher-dimensional universe, propose a trio of Perimeter Institute researchers.The Birth of Universe.

The  poses a big question: if it was indeed the cataclysm that blasted our  into existence 13.7 billion years ago, what sparked it?


Three Perimeter Institute researchers have a new idea about what might have come before the big bang. It's a bit perplexing, but it is grounded in sound mathematics, testable, and enticing enough to earn the cover story in Scientific American, called “The Black Hole at the Beginning of Time.”

What we perceive as the big bang, they argue, could be the three-dimensional “mirage” of a collapsing star in a universe profoundly different than our own.

“Cosmology's greatest challenge is understanding the big bang itself,” write Perimeter Institute Associate Faculty member Niayesh Afshordi, Affiliate Faculty member and University of Waterloo professor Robert Mann, and PhD student Razieh Pourhasan.

Conventional understanding holds that the big bang began with a singularity – an unfathomably hot and dense phenomenon of spacetime where the standard laws of physics break down. Singularities are bizarre, and our understanding of them is limited.

“For all physicists know, dragons could have come flying out of the singularity,” Afshordi says in an interview with Nature.

he problem, as the authors see it, is that the big bang hypothesis has our relatively comprehensible, uniform, and predictable universe arising from the physics-destroying insanity of a singularity. It seems unlikely.

So perhaps something else happened. Perhaps our universe was never singular in the first place.


Their suggestion: our known universe could be the three-dimensional “wrapping” around a four-dimensional black hole's event horizon. In this scenario, our universe burst into being when a star in a four-dimensional universe collapsed into a black hole.

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