Sixty-five years ago a small group of maverick thinkers gathered in a converted Buddhist museum on the outskirts of Cambridge, convinced that language held the key to unlocking artificial intelligence. Their leader was the extraordinary and eccentric Margaret Masterman – linguist, logician, philosopher, religious devotee, and forgotten prophet of AI.With the discovery of an archive that had remained unopened for nearly forty years, Peter de Bolla has pieced togethe...