nostr:npub1hywuy6pv8fctjnppge8cl7ft6gr8qnfhr64c7y3y552ls6v84s5qynke8d nostr:npub1r89lejecvj7q25pqsf9ed63exe3rp3cezdkudk0fr7dwklde6gsqvqs5dt

I would have pointed out these instead

https://en.wikipedia.org/wiki/Mesoamerican_pyramids

At least on the right continent.

But he also said "most" in the first message. But most people all over the world would have been living in tents and caves back then.