A newsletter by a mathematician and philosopher exploring the mathematics and philosophy of the infinite, including set theory, paradoxes, and the foundations of mathematics. Issues include essays, video lecture posts from a lecture series, and historical and technical discussions of topics such as ordinal definability and the rules of chess.

A personal essay newsletter from Brian Dunning-style natural philosophy writer exploring AI's cultural impact, parenting, and civilizational themes through polemic and literary references. Readers get reflective, opinionated takes on technology, culture, and history rather than news or practical guidance.

Notifications of new 3Blue1Brown math videos plus occasional personal essays from the creator on related projects. Recent issues reflect on AI's impact on mathematics, math education, and the process behind making a long video on an Olympiad problem.

A weekly roundup of AI news and commentary, including text summaries and a podcast, covering frontier model releases, safety incidents, and AI mathematics. Readers get a digest of recent model launches, research findings, and editorial analysis of the AI industry.