I'm always taken aback by this fascination and heroification with John Carmack (or similar figures) on HN. I love Doom and Quake too, but that doesn't qualify him any more than any other random senior engineer to work on something totally different. From his interviews it looks like he understands little about the technical details of ML, or about as much as anyone can learn in a few months, and is just banking on PR…
i dont know either personally, but where elon demonstrates being full of shit, carmack would stfu and learn about it before talking. at least thats my impression of them