In 1931, Paul Dirac proved that a single magnetic monopole would explain why electric charge is quantized. The mathematics is elegant: eg = nhbar/2.
Maxwell's equations are almost symmetric. Add monopoles and they become perfectly dual -- every electric phenomenon has a magnetic mirror.
Grand Unified Theories predict monopoles at 10^16 GeV -- ten billion proton masses. Born in the Big Bang, too heavy to create in any accelerator.
February 14, 1982. Cabrera's SQUID records one perfect signal: exactly one flux quantum. Never repeated. The most tantalizing non-detection in physics.
MoEDAL at CERN. IceCube at the South Pole. MACRO under Gran Sasso. A global network scanning for the impossible particle.
AI-enhanced detection. Pattern recognition across petabytes of collision data. If the monopole hides in noise, machine learning will find it.