I'm not really sure what quantum archeology is, but another possibility is that, should we ever discover a way of circumventing the speed of light, you could fly millions of light-years away and set up a big-ass telescope to watch past earth. It'd only work if we discover a way of travelling ftl though, and it's highly unlikely we'll accomplish that in our lifetimes.

[–] Bene7rddso@feddit.de 3 points 1 year ago

We could point our telescopes at black holes and look at our past light they fling back at us

[–] HawlSera@lemm.ee 1 points 1 year ago

Basically it's this idea that you can date online the universe itself to restore anything or anyone from the past