Ask HN: What's the best technical talk you've heard?
Maybe John Carmack's QuakeCon 2012 keynote: http://www.youtube.com/watch?v=wt-iVFxgFWkBut I think the 3 minute talks we host at home once a month or two have among them the 3-5 best I've heard (we just started taking videos, but they're in Hebrew).I highly recommend hosting your own 3 minute talk session. It's really easy and the format just inherently leads to amazing talks.