He's not nitpicking. He's pointing out a poor choice of an example. For instance, I could say "Prime numbers are relatively very rare. For instance, take the f

He's not nitpicking. He's pointing out a poor choice of an example. For instance, I could say "Prime numbers are relatively very rare. For instance, take the first five positive integers, 1,2,3,4,5. 60% of them are prime". I'm both right about my statement and I have a bizarre choice of an example.