Been thinking along the lines of Planet of the Apes -but without any man made catastrophe, meteorite impact and climate stabilization- what sort of structures or evidence of our civilization would remain in five or six million years if we all just vanish? Would an intelligent species of evolved insects -or something else- find buried artifacts in the ground like we did the dinosaurs? Would ancient structures like the pyramids or Great Wall remain for that long, and would any modern things like the Eiffel tower, Burj Khalifa, or even some present day Doomsday Vaults survive that amount of time? In our digitized age, I assume that not much would remain, other than satellites maybe or I suppose any modern species that just happens to get preserved like a dinosaur did.
In theory eventually any earth we lived on would be lost to tectonic plate movements and it would be like we were never here. And then the sun explodes so…
Depends on the time period honestly. Biggest signs are gonna be massive buildings or infrastructure projects. I wonder how long voyager will last just drifting?
We got rocks over 4 billion years old. But you’re right, very little would survive after 100-200 million years.