Scott Alexander lays out his p(doom) math: 25% baseline, halved under a really good Plan C+

slatestarcodex · x · 2026-11-02

Scott Alexander (slatestarcodex) explains his risk estimate in a dispute with @ohabryka: his unconditional p(doom) is 25%, and under a "really good Plan C+" scenario it would be a bit less than half of that. He pushes back on critics' inconsistency: you can't play the horrified deontologist about friends taking AI risk in the same thread where you advocate threatening rival superpowers with unilateral nuclear first strikes. He argues that position would require p(doom|good Plan C+) well above 50%, which he rejects. He stresses he isn't trying to police the Overton Window or guilt anyone.

Related event: AI safety community debates Plan C scenarios and Scott Alexander's p(doom) estimate(17 posts)→

Original post →

More from AGI Musings

AGI Musings channel →