On 2/25/2025 7:01 PM, Alan Grayson wrote:
On Tuesday, February 25, 2025 at 7:36:41 PM UTC-7 Liz R wrote:
On Saturday, 22 February 2025 at 13:01:41 UTC+13 Alan Grayson wrote:
What is the nature of the singularity when a high mass star
collapses to a BH? Is it infinite density at its center, and
if so, why doesn't GR breakdown at this point? AG
It almost certainly does. Unless spacetime is truly a continuum,
hence infinitely divisible, there must come a point where it turns
into something else - or always is something else, if you prefer -
a quantum foam, or whatever.
I was trying to make a specific point; namely, if a singularity is
physically impossible, the question of the existence of a singularity
in the interior of a BH is solved. It doesn't exist! AG
Of course most physicists wouldn't think of that as a /solution/ unless
you had a theory of what replaced the singularity. They don't take "a
singularity" literally as something that exists in the black hole; they
know it's just a placeholder for "Here's where general relativity
breaksdown".
Brent
--
You received this message because you are subscribed to the Google Groups
"Everything List" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion visit
https://groups.google.com/d/msgid/everything-list/a99e60a3-8964-4901-acfe-28f168fa86b9%40gmail.com.
