Trailer trash or not, sometimes it takes the kid to point out the nudity of the emperor. This hick from Indiana would take Atwood's side of the bet against any that care to pony up the money for the other side. The only thing about this that surprises me is that this post isn't from, like, five years ago. But Carmack took this bet within the past week? I just don't think we have the evidence to suggest this is realistic, and plenty to suggest that it's a long way off. We do seem to have the evidence that if it happens, it probably won't be Tesla doing it.
EDIT: ah, perhaps Carmack knows better and is simply willing to write off $10K for the lulz (from the TFA): I'd like to thank John for suggesting this friendly wager as a fun way to generate STEM publicity.