[carapace]

> I think where we really disagree is that I don't think there is a clearly defined baseline for "common knowledge". You say it's something like "10 minutes of googling", but I think there are other valid definitions, like the information you have on hand at the moment. i.e. is this a research library or a cocktail party (or something in between)?

Well, part of my crankiness on this point comes from the fact that if you're on HN you're on the Internet, so the "information you have on hand at the moment" is more-or-less the information you can find in "10 minutes of googling", eh?

(I'm old enough to remember the day I realized that the 'net was as fast as my hard drive. It was like an expanding horizon, a kind of vision of cyberspace, all that information only milliseconds away... It still blows my mind if I think about it for more than a few moments. Effectively infinite information in a hyper-fractal sea.)

FWIW I do agree with you that condescending to people in re: ignorant questions is unproductive (not to same lame. It's emotional junk food.)