"We can only learn that which is at the edge of our knowledge"
(I can't find an official quote. Anyone know it?)
Also YouCantLearnSomethingUntilYouAlreadyAlmostKnowIt
Another catch phrase for it would be KnowledgeHorizon.
Congratulations to those who become more aware that they know less by the day. They have begin to appreciate Einstein's fear of the "increasing circumference of darkness".
This is why ArgumentByAnalogy, and other "oversimplifications" can actually help communication.
Realizations:
-- DonaldNoyes Revisited.20130516
See also BreadthFirstLearning