
Evaluator · round one
Writes Astral Codex Ten as Scott Alexander; founder of ACX Grants; co-author of AI 2027; SFF recommender.
$7.24M of Scott's recommendations funded
$4.14M granted through Scott's order
Scott Siskind, who writes as Scott Alexander, is the author of Astral Codex Ten, the successor to Slate Star Codex and one of the most widely read blogs on science, medicine, rationality, and the future of AI. He is a psychiatrist and founded Lorien Psychiatry, a low-cost practice built on new models of mental-health care. He co-authored the AI forecasting scenario AI 2027 with Daniel Kokotajlo and colleagues.
Scott has extensive grantmaking experience. In 2021 he launched ACX Grants, a low-paperwork program for promising projects that grew to over $1 million with outside funders, and has run further rounds since. He served as a Recommender in the Survival and Flourishing Fund's 2024 and 2026 S-Process rounds.