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"We Really Don't Know How to Compute!" - Gerald Sussman (2011)
Strange Loop Conference

Gerald Sussman's 2011 Strange Loop keynote argues we still do not know how to compute, comparing biological systems with how we program machines. It touches on propagators, constraint programming and robustness.
HN commenters recommend it as a mind-expanding talk on rethinking programming, and cite it in threads on propagators, constraints and brittleness.
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