If we know that extinction event is inevitable soon, like asteroid impact, I think it will be reasonable to try to create remnants, perhaps on the Moon, that could provide possible aliens with information about humanity or even help to resurrect human beings.
If we know that extinction event is inevitable soon, like asteroid impact, I think it will be reasonable to try to create remnants, perhaps on the Moon, that could provide possible aliens with information about humanity or even help to resurrect human beings.
I suspect downvoters are misunderstanding “know” and “will be”; I think Turchin meant “If we knew” and “it would [then] be reasonable” (subjunctive).
I think that downvoters didn’t like the word “resurrection”.
Can confirm this is the main reason for my downvote.