Astral Codex Ten publishes long-form essays on AI safety, rationality, politics, science and culture, alongside reader-written book reviews and weekly open threads. Readers get argumentative, carefully reasoned analysis plus community news such as meetups, surveys and grant-related projects.

Khaled Salih's newsletter offers long-form essays on intelligence, error-correction, and how institutions get trapped by their own ideas, currently drawing on his forthcoming book BACKSPACE and commentary on Macron's response to French protests. Readers get sharp philosophical argument applied to current political events, with close reading of key sentences and a clear critical stance.

Noema is a magazine publishing long-form essays and reportage on geopolitics, technology, climate and philosophy. Readers get in-depth, often scholarly perspectives on global governance, the long-term future and the human consequences of environmental change.

Sub Umbra publishes essays on the history of esoteric and occult thought, tracing how ideas such as enchantment, the occult and the monad changed meaning across eras. Readers get carefully sourced historical and philosophical analysis that challenges common narratives.