They asked freakin' Tim Bray how a browser works. That's a bit overzealous if you ask me. I hope they withheld questions about XML at the very least.

I wonder if they asked logic puzzles and the like to Peter Norvig as well. I can already imagine the interview.

25 yr old interviewer: "What sorting algorithm would you use to sort a billion integers?"

Norvig: "Son, ..."