On 13-01-2020 07:18, Alan Grayson wrote:
On Sunday, January 12, 2020 at 8:58:06 AM UTC-7, John Clark wrote:
On Thu, Jan 2, 2020 at 2:30 AM Alan Grayson <[email protected]>
wrote:
_> If we're convinced it's finite in age, then it can't be
infinite in spatial extent. AG _
We don't know for sure our universe is infinite in size and we'll
never know for sure because we'll never be able to measure precisely
zero curvature with no error at all, but we do know it's pretty damn
flat, if it's curved it's so slight that a light beam would have to
go at least 500 times as far as our telescopes can see for it to
return where it started. So if you respect the empirical evidence
for the Big Bang but the idea of a beginning of a infinitely sized
universe makes you unhappy then the Multiverse idea offers you an
obvious solution, you get an infinitely large infinitely old
Multiverse but with the observable universe having a beginning and
being only finitely large. However I understand the Multiverse makes
you unhappy too. I fear you may be destined to be unhappy.
By the way ... does the inverse also make you unhappy, something
infinitely old but finite in spatial extent?
MY HUNCH, AND THAT'S ALL IT IS, IS THAT "THE SUBSTRATUM" FROM
WHICH THE BB EMERGED, IS INFINITELY OLD, AND THE CONCEPT OF SPATIAL
EXTENT PROBABLY DOESN'T APPLY TO IT. THERE COULD BE MANY BB'S,
POSSIBLY AN INFINITE NUMBER, BUT ALL FINITE IN SPATIAL EXTENT IF THEY
HAD BEGINNINGS. AG
Or there is no such thing as a universe. There only exists a multiverse
of algorithms. One such algorithm is "program AG" who thinks he lives in
a large universe and who is pondering about whether its infinite. But
what really exists are the large number of algorithms. AG as he exists
right now, one second ago, one second into the future all all different
members of the multiverse.
Saibal
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