Why do we talk about the days when Africa was connected to the Eurasian continent, when it is only disconnected from it by a channel (knee-deep, so to speak)?
Did Alexander the Great understand the Theorem of Pythagoras?
This was the knowledge that was kept from Africa; at least, sub-Saharan Africa.
Egypt provides a mystery to us; for there lies evidence that this knowledge had only been rediscovered.
There lies evidence of a race that is no longer, or evidence of total amnesia.
In the former case, this race must have died out from natural causes.
In the latter case, who the fuck knows?
Who the fuck is going to tell us how the pyramids were built?
To believe that antediluvian times were one big party, is to believe that Atlantis had a self-destruct button.