On 2/3/2021 12:25 PM, Alan Grayson wrote:
On Wednesday, February 3, 2021 at 10:55:13 AM UTC-7 [email protected]
wrote:
On Wed, Feb 3, 2021 at 10:05 AM Alan Grayson <[email protected]>
wrote:
/> in GR universes evolve in time, but cannot instantaneously
evolve faster than the SoL./
In 1905 Einstein discovered Special Relativity and said nothing
whatsoever could move faster than light, but by 1915 he had found
General Relativity and had to amend that to some extent, he still
insisted that matter or energy or information cannot move through
space faster than light, but he placed no speed limit on how fast
space itself can expand.
/> In the MWI, worlds come into existence fully formed as it
were, that is, replete with copies of observers. You want to
have your cake and eat as well; that is, appealing to GR, but
inconsistently instantaneously creating fully formed worlds,
say like the one we live in. AG /
MWI doesn't say if a new universe is created instantaneously
*IMO, it surely does! Deutsch makes a right turn in his car, and
immediately another universe is created where a copy of Deutsch makes
a left turn (and numerous other turns!). I see no way around this
violation of GR. AG
*
You need to think of better examples. Something like Deutsch making a
decision is with probability near 1.0 a purely classical event. If it
has some quantum component in its causation it was probably weeks
earlier and in concert with thousands of classical effects.
Brent
or if the new creation only comes into existence at the speed of
light; it doesn't say because it does it need to, it works fine
either way. MWI Is agnostic about that.
/*> I*f your claim that the net energy of the universe is zero
is associated with the universe as a whole, not for some part
of it, then it must be speculative. No calculation can be done
to establish it. Correct?/
Correct, that can only be established through observation and
experimentation. However if General Relativity is correct and if
empty space does contain residual vacuum energy (both those things
can only be determined through observation and experimentationbut
the evidence is piling up that both are correct) then the net
amount of energy in the universe is indeed zero.
John K Clark
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