I posted this link earlier. Notice the awkward edit in the conversation beginning a 3:40. I think Andy divulged more than he should. Of course, I don't have a link yet to prove it. https://twitter.com/i/broadcasts/1ynKOZXdQBOxR
When I first posted the link, I could swear I heard "we are producing gr...hydrogen" but I can't be sure with my old memory.