Eliezer, the so-called "expert blind spot" is IMHO one of the most important problems in lecture-based education and even scientific communication. One of my dreams is to make AI that helps address this, via cognitive models of both experts and novices. This is one of my holy grails. The AI would understand what was said, and "translate" the message to each novice individually, taking advantage of their pre-existing knowledge. In some cases, this "translation" would involve lengthy tutoring with new concepts and knowledge.