Existential risk

Explain existential risks and global catastrophic risks

Explain difference between anthropogenic and natural risks

Start with GiveWell’s investigation: http://www.givewell.org/labs/causes/global-catastrophic-risks

Also Global Catastrophic Risk Institute

Also see this conversation note

See also this comment that considers a “scorched earth” strategy in the context of differential intellectual progress (this is also something to think about regarding SIMADs).