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.

Aidan Cooper writes about experiments testing large language models at chess, including a 2023 completion model that stayed undefeated against frontier chatbots and a new PGN-to-FEN benchmark for LLM state tracking. He also writes about engineering culture, such as how code quality depends on individual senior engineers rather than shared team standards.

Tam Pham, founder of Bachata Library, writes personal essays on digital nomad life, career pivots, chess and bachata training. The sample offers candid, first-person reflections and practical budgeting and housing advice drawn from personal experience.

Halfman is a monthly personal newsletter from a self-described disgruntled designer who shares a 'Top 10' of music, podcasts and reading, plus quirky essays on games, chess variants and everyday life. It reads as a chatty, irreverent mix of recommendations and short anecdotes.