Freeman John Dyson (1923–2020) was a British-American theoretical physicist and mathematician known for his work in quantum electrodynamics and speculative ideas about the far future of intelligent life and technology.
Born in England, Dyson came to the United States in 1947 and spent most of his career at the Institute for Advanced Study in Princeton. He made significant contributions to physics, particularly in unifying the work of Feynman, Schwinger, and Tomonaga on quantum electrodynamics.
His book Infinite in All Directions explores the possibility of life and mind spreading throughout the cosmos and adapting to cosmic conditions over astronomical timescales. His vision of an open, infinite universe where intelligence might persist and grow indefinitely resonates with transhumanist and religious visions of endless progression.