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鈥淚f anything can go wrong, it will go wrong.鈥� Murphy鈥檚 Law is now a part of our culture, used to describe wrong outcomes of every sort, from how buttered toast falls to the way catastrophes strike.

People have uttered similar laments since time immemorial. But the modern origin of the phrase traces back to two men on one fateful day in 1949 at Edwards Air Force Base in California: Colonel John Stapp whose work would later save countless lives in safer cars and airplanes and Captain Ed Murphy whose contributions would lead to safer cockpit controls and foretell the development of better computers and software.

Robin Ince uncovers their tangled tale which sprang from a series of mishaps when what could go wrong did go wrong, risking life and limb for the rider, and how, ironically, the origin of Murphy鈥檚 Law went unnoticed by Murphy himself.

But does this law simply tap into our tendency to dwell on the negative and overlook the positive? Or are the rules of probability - the mathematical likeliness that something will occur - sufficient to support it? We hear how the mathematician whose car鈥檚 clutch ceased to function 100km from home, at night in the middle of a rainstorm with no phone and a flooded tool kit, came up with the definitive equation to predict how often things really do go wrong for no good reason.

Produced by Adrian Washbourne. First broadcast on Monday 17 August 2020.