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The Most EXPENSIVE Mistake In History! 🌎

Mar 27, 2026

Graham Stephan discusses the $327 million Mars Climate Orbiter failure in 1999, caused by a unit conversion error between Imperial and metric systems, highlighting it as one of history's most expensive mistakes.

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Graham Stephan discusses the $327 million Mars Climate Orbiter failure in 1999, caused by a unit conversion error between Imperial and metric systems, highlighting it as one of history's most expensive mistakes.

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