Knuth vs Cartoonist.

↓ Transcript
Knuth: So to summarize, an algorithm must terminate.

Cartoonist: Wait a minute Dr. Knuth, the web keeps changing, so PageRank has to keep going, right? They can't let it just terminate.

Knuth: They keep redoing it, but it does terminate each time. It's like a comic strip. There is an ongoing series but each day's comic strip needs its own punch line.

Cartoonist: I'm not sure I get that.

Knuth: Young man, not only are you not qualified to be implementing algorithms, you probably shouldn't try to write any comic strips either.

Title: Knuth vs Cartoonist.