Makes me dizzy, how much things have changed since I was in school.
Agreed, but hat was in the 60s ... Moreover if things have changed fast since then, they are changing even faster now. DNA, mtDNA and so on have been the principles behind the changes in human origin.
mtDNA now puts anatomically correct humans (us) back to 300,000 years. What were we doing all that time? Stop and realize that our modern civilization and all its achievements would be literally dust, if stopped now, in a mere 10,000 years.
Also many of the Old Guard have passed away and their iron-clad pet theories have gone with them. Same is true for Egyptology which is currently in total chaos.
Still consensus thinking, and institutionalized theories formulated in the 19th century is holding back an even faster pace