I actually don't like how Lex tries to go against a couple of things that Charles says here. He is out of his league with this one, just like if Charles were to try tell Lex what is happening with Reinforcement learning. If you not sure when in this video I Lex goes against Charles," here. <a href=""https://www.youtube.com/watch?v=FKh8hjJNhWc&amp;t=1h37m30s"">1:37:30</a>"