Dr. Tae 닥터태 » Blog Archive » Am I A World-Class Pool Player Or What? (#mtt2k)

http://drtae.org/am-i-a-world-class-pool-player-or-what/

This #mtt2k critique of Khan Academy targets the perception by some that Sal Khan is an "expert" at whatever he demonstrates in his videos, and that kind of popular opinion has to be right...right?