Sam Harris speaks with Toby Ord about preserving the long term future of humanity. They discuss moral biases with respect to distance in space and time, the psychology of effective altruism, feeling good vs doing good, possible blindspots in consequentialism, natural vs human-caused risk, asteroid impacts, nuclear war, pandemics, the potentially cosmic significance of human survival, the difference between bad things and the absence of good things, population ethics, Derek Parfit, the asymmetry between happiness and suffering, climate change, and other topics.

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