Is it possible that a person of modest intelligence could learn the whole history of philosophy, in terms of knowing every notable philosopher (from Thales to, say, Rorty), having read a few of their books or at least knowing and being able to expand upon their positions ... or is it simply outside the scope of a person, any less than a genius to have the time to gain such knowledge? It seems to me that there is not more than a couple of hundred such philosophers, and as such could be accomplished, at least superficially. Or is it more efficient to decide outright to miss some philosophers out?