This is NOT AI

Six deterministic Spaces. Zero weights. All arithmetic.

• Count Every Prime: Sieve of Eratosthenes, c. 240 BCE
• Search Without a Vector: Okapi BM25, 1994
• The Next Word: word n-gram, 1948
• Best Rank-k Image: truncated SVD, 1873 and 1936
• Connect Four: negamax and alpha-beta, 1956 and 1958
• Shortest Route: A* search, 1968

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