My views on objective morality

[Angrboda]

We are talking about the fact existence cannot come out of non-existence with no cause. In your example, existence simply changed with no cause and time began to apply to it. That is difference from there being nothing, and existence coming out of it after there being nothing.

How would we know that something can't come from nothing? We've never been in a state of nothingness, but if there were such a time as when nothing existed, how would we know about it? It's an assertion based on causality as it applies to creation ex materia, not an observation of what happens to nothingness. Maybe something does come from nothing. How would you know, with emphasis on the word 'know', that things were not such?