Don't get me wrong. I am fascinated by the ancient Egyptians and admire their accomplishments. Any claims that we are unequal to their technology are just silly, and discredit the field of archeology.
I was just interested in the idea that primitive man, at some point, had technology that might not have been primitive at all (by modern standards).
What this discussion brought to my mind were things in ancient myths/literature from mostly the Babylonian/Assyrian/Sumerian/Akkadian areas as to demigods (Apkallu) passing on technology (among other things).