Another question: How did BHO Sr. complete a BA in 3 yrs. and a Ph.D. in Economics (except the thesis/dissertation) in 2 yrs? Aren’t those programs usually longer?
The undergraduate degree (the BA), he went to summer school--he started early and three summers did the fourth year.
As to the Ph.D, not so easy to explain. He was aggressive but that is still not doable.