Re: OT: More about the universe and black holes

On 05/12/2024 22:37, Jeroen Belleman wrote:

On 12/5/24 10:34, Martin Brown wrote:

On 04/12/2024 11:54, Jeroen Belleman wrote:

If a theory predicts a singularity, this merely tells us
the theory is incomplete.

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The theory could be complete if it only posits singularities in places where you can never observe them and report your findings. With the possible sole exception of a maximal angular momentum Kerr metric I think that Penrose's cosmic censorship conjecture holds.
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https://en.wikipedia.org/wiki/Cosmic_censorship_hypothesis
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I don't know how strongly supported it is these days.

 It's a philosophical issue rather than a scientific one, but I
hold that a science will have ceased to be one when it accepts
things by declaring them unobservable. They might as well
postulate the existence of fairies.

It may yet be possible to prove mathematically that they are.
It is only one edge case that seems to still be a problem.
In general I agree that at some stage the next level theory will come along with some new mathematics where everything that we know at present can be derived as a weaker field limiting case.
However, at the moment the contenders like string theory look very cumbersome to use even if they actually worked!
--
Martin Brown