On 11/28/2017 9:30 AM, John Clark wrote:
On Mon, Nov 27, 2017 at 9:31 PM, Brent Meeker <meeke...@verizon.net
<mailto:meeke...@verizon.net>>wrote:
>>
I think think the string theory Multiverse is related to the
inflation theory Multiverse and both are related to the Everett
/
D
eutsch Multiverse. When 3 different theories independently
point in the same direction nature may be trying to tell you
something.
>
They don't point in the same direction. The string theory and
inflation theory multiverse posits different universes with
different physical parameters due to random symmetry breaking.
Everett/Deutsch assume the same physics
All 3 assume the same physics.
There must be some basic fundamental physical principles that remain
the same in every string universe and every
Everett/Deutsch
universe, although we don't know what they are, we don't know what's
really fundamental and what is not. 400 years ago Kepler tried to
derive the fact that there are 7 and only 7 planets from pure
mathematics but he failed to do so, he failed for 2 reasons, it turns
out there are more than 7 planets and he failed because the number of
planets is not a fundamental law of logic or physics but is a result
of random happenstance. Some of the laws of physics that we think of
as fundamental may be like that, they are only true in this universe.
But there must be some laws of physics that are true in every
universe, I'd bet money that the second law of thermodynamics is one
of them
,
but there will be others.
And how is the Eternal Inflation Multiverse fundamentally different
from the String Theory Multiverse?
I didn't say they were different from each other; I said they were
different from the mulitple worlds of Everett which all share the same
physics with the same physical constant values.
Brent
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