I feel this is an instance of prof.dr. Edsger W.Dijkstra just being mean. If one works more on pigeon-hole principles you end up with Ramsey Theory, which covers some amazing results.
Yeah, this feel like a comment that might have been OK at a cocktail party or made offhand in the middle of an essay on something else.
Sure, maybe, in some instances, some people, might, perhaps make a little too much out of using the pigeon hole principle. But here, he make too much out of that situation.
