After reading this, I realized he lives in Atlanta GA and has a restaurant here. So of course I had to go. The pizza was, of course, phenomenal, but Jeff himself was there, and I let him know that his article reached the top page here.
He told me he was working on an AI framework in C++! I gave him the URL for Hacker News, hopefully he'll find some time to participate.
Hilarious, I told him my pizza was excellent, and he was eating a Big Mac. He told me his was great too, but I couldn't have any. No trade!