Big Bang discovery opens up possibility of multiverse

"It's hard to build models of inflation that don't lead to a multiverse," MIT physicist says.
By Aileen Graef Follow @AileenGraef Contact the Author   |   March 21, 2014 at 11:18 AM

After the recent discovery that substantiates the Big Bang theory, scientists are now looking at the possibility of the multiverse -- universes other than our own.

After scientists announced this week that they found evidence of cosmic inflation, or the rapid expansion of the early universe, it supported the Big Bang theory. It also opened up the possibility of the existence of the multiverse -- the idea that universes other than our own exist.

"It's hard to build models of inflation that don't lead to a multiverse," said MIT theoretical physicist Alan Guth. "It's not impossible, so I think there's still certainly research that needs to be done. But most models of inflation do lead to a multiverse, and evidence for inflation will be pushing us in the direction of taking [the idea of a] multiverse seriously."

Cosmic inflation would likely cause the universe to expand unevenly, which could cause bubbles or pockets in which other universes could be formed. The other universes could follow any sorts or laws. They could lack atoms, gravity, or be filled with dark energy.

The existence of other universes could also explain many of the weird astral phenomena scientists have witnessed.


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