"So I'm just mentioning this little historical note about the timescale of mathematical progress, to emphasize that all the people who say "AI is 30 years away so we don't need to worry about Friendliness theory yet" have moldy jello in their skulls."

It took 17 years to go from perceptrons to back propagation...

... therefore I have moldy Jell-O in my skull for saying we won't go from manually debugging buffer overruns to superintelligent AI within 30 years...

Eliezer, your logic circuits need debugging ;-)

(Unless the comment was directed at, not claims of "not less than 30 years", but specific claims of "30 years, neither more nor less" -- in which case I have no disagreement.)