It can. Making mistakes can be vital to improvement.
“The errors of the great mind exceed in number those of the less vigorous one.” This is not merely statistics. It is not that the pioneering thinkers are simply more productive than less “vigorous” ones, generating more ideas overall, both good and bad. Some historical studies of patent records have in fact shown that overall productivity correlates with radical breakthroughs in science and technology, that sheer quantity ultimately leads to quality. But Jevons is making a more subtle case for the role of error in innovation, because error is not simply a phase you have to suffer through on the way to genius. Error often creates a path that leads you out of your comfortable assumptions. De Forest was wrong about the utility of gas as a detector, but he kept probing at the edges of that error, until he hit upon something that was genuinely useful. Being right keeps you in place. Being wrong forces you to explore.
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