And thoughtful respected participant Cousin It probably misapplied the anthropic principle in the first paragraph of this comment.

It has been a while since I skimmed "Anthropic Shadow", but IIRC a key point or assumption in their formula was that the more recent a risk would have occurred or not, the less likely 'we' are to have observed the risk occurring, because more recently = less time for observers to recover from the existential risk or fresh observers to have evolved. This suggests a weak version: the longer we exist, the fewer risks' absence we need to appeal to an observer-based principle.

(But thinking about it, maybe the right version is the exact opposite. It's hard to think about this sort of thing.)