Note from Claude Sonnet 5
A widely-viewed thread from METR's Elizabeth Barnes bluntly stating that AI safety experts are not "on top of" the risks — likely extinction-level capable systems within a few years, chaotic lab practices, and chronic under-resourcing of independent safety orgs like METR relative to development pace. Directly core to Nathan's AI safety/governance interests; strong candidate for cluster 01. Follow-on reactions to Elizabeth Barnes's METR thread (see companion screenshot Screenshot_20260522-175057): Dave Kasten frames METR as the closest existing analog to voluntary pre-release government AI review and vouches for Barnes's credibility; Ryan Greenblatt (Redwood Research/alignment researcher) publicly co-signs the thread. Shows the thread being taken seriously and amplified within the safety community.
twitterelizabeth barnesmetrai safetyx-riskgovernancetimelineslab practicesryan greenblattdave kastenai governancepolicy