https://www.quantamagazine.org/big-boun ... d21d14a9ea
I have a couple of issues with this treatment.
1) The article portrays Big Bang as starting from a point. This is mathematically incompatible with General relativity, geometry and simple arithmetic. There is no way a finite scale factor can multiply a zero sized object to get an infinite (observed) universe.
2) The ekkpyrotic Big Bounce requires an additional energy field just like inflation. Einstein Cartan gravity can do the job without an additional energy field. It requires that the torsion of space time is non zero and coupled to spin in the matter density. The torsion creates the bounce.
Quanta: a Big Bounce challenge to the Big Bang
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notFritzArgelander
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Quanta: a Big Bounce challenge to the Big Bang
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