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Marco Masi

Example of a technology that was long underestimated?

I'm wondering how and in what time frame new technologies emerged and found application in the history of science. I could make several examples of those which suddenly and unexpectedly changed the world, but not the vice-versa. In particular, I'm wondering which didn't find an application or remained undeveloped for a long time (say at least a couple of decades) but then found its way to success?

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