1911: Birth of John Archibald Wheeler

On 9 July 1911, the American theoretical physicist John Archibald Wheeler was born in Jacksonville, Florida. Over a long career he became one of the most imaginative interpreters of quantum theory and gravity, collaborated with Niels Bohr, supervised Richard Feynman, and coined the now-familiar terms “black hole,” “wormhole” and “quantum foam.” Late in life he distilled a radical slogan that still reverberates through computer science and artificial intelligence: “It from bit.”

Wheeler argued that every physical object—“every particle, every field of force, even the space-time continuum itself”—derives its existence from the answers to yes-or-no questions, that is, from bits of information. Reality, he insisted, is not a collection of things but a vast network of informational acts. This claim completed a philosophical arc that began with Leibniz’s combinatorial dreams and Boole’s algebra of logic, continued through Shannon’s mathematical theory of communication, and found physical expression in Wheeler’s late essays.

The idea quickly travelled into the territories that would become AI. Digital-physics pioneers such as Edward Fredkin and Konrad Zuse had already imagined the universe as a giant computer; Wheeler’s authority gave that vision philosophical respectability. Cognitive scientists who treated the mind as an information-processing system discovered a physicist who treated the entire cosmos the same way. Quantum-information researchers, meanwhile, took his insistence that measurement creates reality as a licence to ask how qubits might compute, store and communicate intelligence.

Today the same thread is visible in large language models, which learn the statistical structure of human discourse purely as patterns of bits, and in quantum-machine-learning experiments that seek to harness superposition for new forms of inference. Wheeler never wrote an AI program, yet his conviction that “information sits at the core of physics” helped make the computational conception of mind and world seem inevitable. On his birthday we remember that the road to artificial intelligence runs not only through electronics laboratories but also through the deepest questions about what the universe is made of.