This is a two part episode. The first 20 minutes is episode 81 "Elon Musk: 40 Shades of Battery Grade" a Q&A with questions that resulted from my recent appearance on TC's Chartcast - episode 46. I discussed lithium industry basics with an audience more familiar with EVs than lithum chemicals. I got a few dozen questions after that episode and answer several of them here. Afterwards, I include episode 80 with my comments on Tesla's Battery Day. This episode was originally posted on my website: globallithium.net but so the Anchor catalog is complete I am including it here.