Several of you have admitted that you first started attending my talks for the spectacle of watching someone who clearly hadn’t adequately rehearsed teeter on the edge of disaster. With that in mind I’m going to depart from my normal practice and read from prepared notes.

It’s customary in this situation to say I feel humbled, but I’m not sure I can convey how genuinely humbled I feel. Like a child, it takes a village to raise a scientist, and I’m incredibly lucky to have been raised by this particular village. Actually, “lucky” isn’t really the right word. I’ve been...

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