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Old April 13th 13, 03:04 AM posted to sci.astro,sci.physics,sci.physics.relativity
hanson
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Default Gravity waves: Inflationary Big Bang vs. Cyclic Universe?


"Yousuf Khan" wrote:
I was watching a program which were comparing various Big Bang theories
against each other. In it, they said one way to falsify Inflation vs.
Cyclic Universe theories is that a Cyclic Universe will *not* produce
gravity waves. Does anybody know why this would be the case? One would
think that whatever mechanism lead to the BB, would always cause a lot of
gravity ripples.

I found some info on it, but it doesn't really explain what leads to this
conclusion:

The one possible test that they point to that could distinguish the
inflation and cyclic scenarios is the expected more sensitive measurement
in coming years of a possible B-mode polarization signal due to gravity
waves in the CMB. They claim that inflation predicts a significant amount
of B-mode polarization, whereas the cyclic model doesn’t.

Endless Universe | Not Even Wrong
http://www.math.columbia.edu/~woit/wordpress/?p=563

hanson wrote: Yossel, all you did was adding your opinion
to the greatest story ever told: "Cosmology".. which is
a STORY! Any and all variations are interpretations
and educated guesses of what happened yore and yonder.
Nowadays all that the public sees are those Photoshopped
pictures and artists' renditions. Enjoy all that.
It's a vast improvement over religious creationism by the
Abrahamic delusions and other tribal, drug induced states.