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What is life, and what kinds of systems count as alive?

Axis: broad functional definition (anything that sustains itself, incl. non-biological) ... narrow biological checklist

John

date change position video
2011-06-15 tension John disputes Hank's claim that Data doesn't reproduce: the android had a daughter, so Hank got his Star Trek facts wrong. Question Tuesday! Paula Deen Riding Me (and critical reading) 00:00:02

Hank

date change position video
2011-06-14 new Hank defines life functionally — what wants, or what lowers its own entropy using energy — and ventures a cautious yes that Google is alive. Google Is Alive! 00:03:08