A couple years ago my chemistry teacher told my class that the Egyptians had really advanced technology (technology even more advanced than our own) thousands of years ago but it all got lost because they started a nuclear war
Edit: she told us that the evidence was that there were smartphone paintings
You see cats have powers similar to Telekinesis. Why do you think they choose rivers surrounded by deserts to start the first civilizations. Sandboxes everywhere they please.
But one dark day the Faraó Ramses forgot to refil the food pile because and I quote "but it still had food from yesterday".
This one mistake doomed humanity to the eternal silence treatment.
(and that's why his tomb sucked, his was the first that humans actually had to build)