Norbert Wiener's 1948 Cybernetics: The Feedback Loop Behind Modern AI
JafarNajafov · x · 2026-10-15
The author retells the story of Norbert Wiener and his 1948 bestseller Cybernetics:
- A prodigy: college at 11, Harvard PhD at 18; tasked in WWII with fixing anti-aircraft guns that kept missing planes
- Origin of feedback: from pilots' observe-and-correct loops and brain-damaged patients overshooting for a glass of water, he distilled the four-step loop: observe, compare to goal, measure the gap, nudge to close it
- Naming and legacy: from Greek kybernetes (helmsman) came "cyber"-everything; the claim that animals and machines run the same loop underpins modern AI training — guess, measure error, nudge, repeat billions of times
- Early warning: postwar he refused military funding, warned unions about automation, and in 1960 wrote that we must ensure "the purpose put into the machine is the purpose which we really desire" — an early AI alignment concern
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