The physical world tends to have certain constraints that make such true singularities impossible. For example, the universal speed limit: c. But, you could argues that we could approximate a singularity well enough to fool us humans.
Suggesting the singularity is physically possible is roughly like suggesting that human telekinesis is possible, ie physics would need many very interesting errors.
Anyway, imo the event horizon is more interesting. That's where the paradigm shift happens - there is no way to escape whatever "comes next".
(Note - some people confusingly use "singularity" to refer to the phase between the event horizon and "infinity")
If there is anything "beyond" that at all, I think it's pretty safe to say that any idea we have as to what it would be is very unlikely to be anywhere near the realm of correct.
> In 1993 Vernor Vinge drew on computer science and his fellow science-fiction writers…
But I don’t think it’s worth completely writing off as if we couldn’t possibly know anything. Progress outside of time would resolve the issue I resolved to. I’m not saying it could actually be done or doesn’t cause a million other issues. It’s an idea for a solution, but it’s completely unrealistic, so you shelve it.
It was something like the "speed of increase in inflation is slowing down" I've tried to search for it but no joy.
Anyway, it was maths.