[rubitxxx6]

> This event establishes a new worst-case scenario

This person’s definition of “worst-case scenario” is much different than mine.

We don’t know with certainty what the universe will throw at us.

We just do the very best we sensibly can.

Why should we assume that the worst thing that could happen to us happened within the past 20K years?

[thrdbndndn]

I honestly don't understand what you're trying to say, even from a semantic standpoint.

[tempestn]

I think they're quibbling with the fact that this isn't technically the worst case scenario, but merely the worst known, historical case.