Re: SpaceTime

Tom Roberts wrote:

>
On 5/30/24 12:48 AM, Thomas Heger wrote:

>
Spacetime is simply what exists, [...]

>
No, NOT AT ALL! You REALLY do not understand very basic physics, at a
fundamental level that distorts all your 'thinking' and everything you
write.
>
Spacetime is a MODEL of spatial-temporal relationships observed in the
real world.
>
Tom Roberts

I tend to think of physics that way, too, but I was watching this
episode
of How the Universe Works called "The Mystery of Space Time" and had a
few
issues with it:
"Space-time is the fabric of our reality"
"The universe is made of space-time"
"Whatever the substance is, time and space bound together, that's
expanding
and creating the universe we see around us.  It's everything. Space-time
is what the universe really is."
And they were discussing the beginning of the universe and inflation
and
expansion speeding up.  Well, I have different explanations.
Gary