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"Since they are innocently unaware of the real but hidden difficulties of their plans, they speak with great facility and confidence. Those involved with practical reactors, humbled by their experiences, speak less and worry more."

Replace 'reactors' with any sufficiently complex system and you'll find this resonates incredibly strongly even today.

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My dad worked on the Pioneer 10 and 11 space probes. Specifically the frame that held them to the rocket. It had to be light, strong, flexible enough to isolate them from the rockets vibration, and not resonate either.

Design, fabrication, and testing took 18 months. And he wasn't the only engineer working on it.

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