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Like a mountain looming over a calm lake, it seems the universe may once have had a perfect mirror image. That's the conclusion a team of Canadian scientists reached after extrapolating the laws of the universe both before and after the Big Bang.
Physicists have a pretty good idea of the structure of the universe just a couple of seconds after the Big Bang, moving forward to today. In many ways, fundamental physics then worked as it does today. But experts have argued for decades about what happened in that first moment — when the tiny, infinitely dense speck of matter first expanded outward — often presuming that basic physics were somehow altered.
Century - Group - Romans - People - Heads
During the fourth century, a group of Romans mysteriously decapitated already dead people and buried the heads between each owner's legs.
That led them to propose a previous universe that was a mirror image of our current one, except with everything reversed. Time went backward and particles were antiparticles. It's not the first time physicists have envisioned another universe before the Big Bang, but those were always seen as separate universes much like our own.
Universe - Bang - Turok - Live - Science
"Instead of saying there was a different universe before the bang," Turok told Live Science, "we're saying that the universe before the bang is actually, in some sense, an image of the universe after the bang."
"It's like our universe today were reflected through the Big Bang. The period before the universe was really the reflection through the bang,” Boyle said.
Imagine - Egg - Anti-universe - First - Antiprotons
Imagine cracking an egg in this anti-universe. First, it would be made entirely of negatively charged antiprotons and positively charged anti-electrons. Secondly, from our perspective in time, it would seem to go from a puddle of yolk to a cracked egg to an uncracked egg to inside the chicken. Similarly, the universe would go from exploding outward...
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