XOR Broke AI in 1969. However chirality is the key to solving the XOR problem with a perceptron.

A 60-year-old proof, a voltage rail, and the discovery that exclusive-OR is not a logic problem — it's a chirality problem. There is a moment in 1969 that the artificial intelligence community has never fully recovered from. Two men — Marvin Minsky and Seymour Papert, the most powerful figures at MIT's AI Lab — published a slim mathematical volume called Perceptrons . In it, they proved something…