I’m not really into conspiracies, but I enjoy fantasies about the harmless “what if”'s around stuff like this.
What if there actually was an advanced civilisation before us that built the pyramids and was wiped out by some global natural disaster…
What if extraterrestrial life has visited us and exchanged technology with us, but the civilisation that received it disappeared for some reason…
What will future humans think in 10 000 years if our civilisation is wiped out in 200 years and they start finding remains of our cities and tech?
It makes for fun thought experiments and story prompts.
“Do you need to” != “Have you”