the pyramid builders were more advanced than we are today, actually

their edifices survived disasters that none of our tech would have survived either, all of it would have been washed out to sea and crushed under tons of sediment

there is very good reason to believe that all the pyramids they built tapped into energy captured by the earth from the sun and used it to power devices that we most likely have never seen even a fragment of

i personally believe there was humans with computers and an internet operating with entanglement already 13000 years ago, the calculations that we can see being talked about in ancient texts about celestial bodies and their timings and motions that are even more mindblowing than these feats of stonemasonry...

and speaking of this, the calendars of the Maya...

there is hundreds of other points you can dig at but those are just a few