So Randy lived that way for several years, as he and Charlene insensibly crept upwards on the socioeconomic scale and began finding themselves at parties with people who had arrived in Mercedes-Benzes. It was at one of these parties where Randy overheard a dentist extolling some brilliant young oral surgeon who had just moved to the area. Randy had to bite his tongue not to start asking all kinds of questions about just what "brilliant" meant in an oral-surgery context—questions that were motivated solely by curiosity but that the dentist would be likely to take the wrong way. Among coders it was pretty obvious who was brilliant and who wasn’t, but how could you tell a brilliant oral surgeon apart from a merely excellent one? It gets you into deep epistemological shit. Each set of wisdom teeth could only be extracted once. You couldn’t have a hundred oral surgeons extract the same set of wisdom teeth and then compare the results scientifically. And yet it was obvious from watching the look on this dentist’s face that this one particular oral surgeon, this new guy, was brilliant. So later Randy sidled up to this dentist and allowed as how he might have a challenge—he might personally embody a challenge—that would put this ineffable quality of oral-surgery brilliance to some good use, and could he have the guy’s name please.