The End Of The World with Josh Clark Natural Risks
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Nov 14, 2018 
Guests on the podcast talk about the existential risks faced by humanity, including asteroid impacts, the potential for human colonization of other planets, the runaway greenhouse effect caused by climate change, and the dangers of intelligent algorithms evolving beyond human control.
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The Dinosaur-Killing Asteroid Impact
- About 66 million years ago, a massive asteroid hit the Earth at the Yucatan Peninsula, creating a crater 110 miles wide.
- This impact triggered earthquakes, tsunamis, fire rain, and global darkness, causing the extinction of 75% of species including dinosaurs.
Humans Descended From Survivors
- The survivors of the asteroid impact were often small burrowing animals that could feed off carcasses.
- Humans are descended from these resilient survivors, making life on Earth remarkably tough and persistent.
Spreading Humans Beyond Earth
- Humans are Earthbound, so Earth's fate determines ours, but unlike dinosaurs, we can spread through space.
- Colonizing other planets will protect humanity from extinction by diversifying our habitat beyond Earth.