The following is not a question: Can something come from nothing?

[Jackalope]

I'm unconvinced that's the case. You're speaking of the existential beginning of a singularity that he appears to be saying never existed at all.

I think he's saying that the singularity existed, but that the physics concept of time did not coexist with it, hence time references to it are meaningless.

LL: Who's right?

Could be, and were that the case, temporal relationships would appear to be at least indescribable in the same terms that apply to the temporal universe.

Regardless of what LL meant, there are inflationary cosmological models that don't require singularity. I lean towards singularity being a mathematical oddity of an incomplete model rather than being a feature of reality. Of course I don't claim to know one way or the other.