I didn't think he was bragging, and I'm totally willing to believe that he just wants to teach better. I just think that he's wrong to believe that (a) the 45x

I didn't think he was bragging, and I'm totally willing to believe that he just wants to teach better. I just think that he's wrong to believe that (a) the 45x difference is surprising, given the way he seems to have taken his measurements, (b) that given his observed 45x difference, we should then expect there would be a similar 45x difference in programming speed on tasks not based around the material in his course, and (c) that this is evidence of some sort of deficiency on the part of his students that he as an educator should fix. I don't think his problem is ego; I think his problem is an unusually flawed way of comparing programming speed.