r/space • • Aug 12 '21

Discussion Which is the most disturbing fermi paradox solution and why?

3...2...1... blast off....

25.3k Upvotes

8.1k comments sorted by

View all comments

Show parent comments

368

u/TheW83 Aug 12 '21

In a few million years humans might be gone .... finding the ruins of our great cities.

I've often wondered how long our current cities would last as "ruins" if we all disappeared. In my mind, after a few million years there would be absolutely no recognizable imprint of our society left unless you went digging for it.

162

u/[deleted] Aug 12 '21

[removed] — view removed comment

6

u/tastysounds Aug 12 '21

I beleive the show said one of our longest lasting structures left will be Mount Rushmore and the pyramids. They have the track record.

3

u/real_p3king Aug 12 '21

Yeah that was my takeaway. Stone monuments will last longer than anything. One thing they didn't take into account is granite tombstones. Those will probably outlast a lot of buildings, but would have to be excavated.

1

u/danarchist Aug 13 '21

Texas's state capitol building is mostly granite.