The Frontiers of Knowledge

Why it’s on the list: Grayling takes three fields — physics, history, and the study of mind — and maps where each one’s knowledge stops and why. A book about the shape of the frontier rather than the contents of any one discipline.

Where I saw it: In the reply thread to @WillManidis’s question, “what is the single best book you can read that will explain an entire industry?” (June 2, 2025) — a crowd-sourced list Kyle recovered by hand and saved to his Apple Note “Books To Read”; the full set of replies lives on what is the single best book… (tweet). It was listed there as “The Frontiers of Knowledge by A.C. Grayling”.

Connections

• Science — one of the three frontiers Grayling maps.
• History — another; his point is that the limits are different in kind.
• Open Source Knowledge — knowing where the edge of the known sits is the prerequisite for adding to it.
• what is the single best book… (tweet) — the thread this recommendation came from.