Resilience and Diversification After the Dinosaurs' Extinction

Humans have faced existential risks since our species was born. Because we are Earthbound, what happens to Earth happens to us. Josh points out that there’s a lot that can happen to Earth - like gamma ray bursts, supernovae, and runaway greenhouse effect. (Original score by Point Lobo.) 

Interviewees: Robin Hanson, George Mason University economist (creator of the Great Filter hypothesis); Ian O’Neill, astrophysicist and science writer; Toby Ord, Oxford University philosopher.

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