What's the point of this huge conspiracy theory?... Even if it's true, for example, that my ancestors built the first wheel 8000 years ago, what good is knowing this if we're not even building the best bicycles now?
And, being a mathematician, I can say with a fair amount of certainty, that though a great deal of Greek mathematics might have have originated in Egypt, mathematics is like Engineering. It's not static knowledge... It doesn't stand still. Today's advances are built on yesterday's old news. And I can say with confidence that Europe has produced some fantastic mathematical feats in the past century alone. Arguably the most impressive in history...
Arguing for the greatness of Egyptian mathematics today is like suing to regain the $100 that was stolen from your ancestor 500 years ago and failing to take into account the interest that has accrued on this money in the subsequent years. It's kinda pointless.
This is not to insult the ancestors... or deny to Africa what is hers - which no doubt is considerable... This is to encourage us to think about the nature of knowledge and technology.
And perhaps to advance our efforts beyond vain efforts to proclaim the greatness of the past.
Because any greatness that we will have tomorrow won't be obtained by ignoring Europe and building on Egypt as if the history that followed never happened. That would be doomed to failure.