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A Brief History of AI

AI's story is a cycle of soaring hype, crushing "winters," and an eventual breakthrough that changed everything.

The timeline

Era What happened
1950 Turing's "Computing Machinery and Intelligence" — the Turing Test
1956 Dartmouth workshop coins "artificial intelligence"
1960s–70s Symbolic AI / expert systems; big promises
1974–80 First AI winter — funding collapses as promises fail
1980s Expert-systems boom… then bust
1987–93 Second AI winter
1997 Deep Blue beats Kasparov at chess
2012 AlexNet — deep CNNs crush image recognition; the deep-learning era begins
2017 "Attention Is All You Need" — the transformer
2020s LLMs (GPT, Claude, …) and reasoning models

Why it kept stalling

Early AI relied on hand-written rules — brittle and unscalable. Two winters came when reality fell short of hype and the money dried up. The thaw came from a different bet: learn from data, plus enough compute and data to make it work.

The lesson the winters teach: separate genuine capability from hype. Today's progress is real — but the field has been "about to solve intelligence" before. A useful caution for claims about the singularity.

Related: What Is Machine Learning · The Turing Test · The Technological Singularity