Your son is getting an education. At the same age, in a fishing village with my father overseas flying a bomber, I read every book in his library whether I understood them or not. I think of it now as a special kind of scholarship.

Reminds me of the film Derrida in which the great one was asked if he had read every book in his voluminous library. "Oh, no. Only four of them," he replied. "But those four very, very carefully." Apparently slow reading is a true mark of knowledge.

The results of your son's reading will be very satisfactory.