One can experimentally verify and logically theorize about big bang creation. Was time born then, or has continuous existence even before the event? That depends on the big bang model! Most people are not aware of the compatible models and religions compatible!
Science is a credible filter that eliminates dead-wood theories no matter how beautiful, the new theories again mushroom awaiting more experimental garbage collection. There was convincing (ALL religions created before 1915) slaughter of religions which believed in permanent or created universe, finally devastated by Einstein space-time and Hubble experiments.
Then the dilemma of explosive expansion!
Almost any one sane believed in crunch from gravity (while speeds get larger with distance, Gravity decelerations,means velocities would be falling since the only outward acceleration was from big bang at creation time) Not so, showed astronomical observations at turn of century! Distant galaxies fly apart at accelerating speeds, from newly mysterious-created-concept dark energy!
- Pope-compatible model (by NARRATED by Hawking): OK to study post big-bang but not before/at creation time, for that was the work of God! Sir escaped before creation of new inquisitions!
- Scientist model – creation time irrelevant, density of mass was such that entire universe fit in plank length and it exploded creating time. Why? Can't know!
- Stoic model – time
continues to minus infinity. Two branes collided in hyper-space to
lead to big bang.
- Recursive Model of aaqgs: (my religion with me ONLY follower) A universe either dies in a big crunch or expands for ever. Infinite
expansion is last creation stage after many crunches. Crunches are required to destroy entropy/qubits, which has no other known way of destruction. Perhaps soon or may be trillions of generations later,
our descendants will discover ways of reversing entropy and live for
ever after since our universe expands for ever and no big crunches
will happen and there is no acceleration within our galaxy(become universe then)
- The black hole model –
the universe springs from the singularity at the center of a
hyper-space black hole, likely from a supernova of a hyper-star.
https://phys.org/news/2013-09-goodbye-big-black-hole-theory.html
http://www.hawking.org.uk/the-origin-of-the-universe.html - White hole model is expected from loop quantum
gravity that is one convincing way of unifying GR and QM (other is
string theory).Loop
quantum gravity proposes that space-time is made up of fundamental
building blocks shaped like loops. According to Haggard and Rovelli,
the loops’ finite size prevents a dying star from collapsing all
the way down into a point of infinite density, and the shrinking
object rebounds into a white hole instead. This process may take
just a few thousandths of a second, but thanks to the intense
gravity involved, the effects of relativity make the transformation
appear to take much, much longer to anyone watching from afar. That
means that minuscule black holes born in the infant universe could
“now be ready to pop off like firecrackers,” forming white
holes, according to a report in Nature.
Some of the explosions astronomers thought were supernovae may
actually be the wails of newborn white holes.
http://www.pbs.org/wgbh/nova/blogs/physics/2014/08/are-white-holes-real/
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