Returning to our interventionistas, we saw that people don’t learn so much from their—and other people’s—mistakes; rather it is the system that learns by selecting those less prone to a certain class of mistakes and eliminating others. Systems learn by removing parts, via negativa.fn4 Many bad pilots, as we mentioned, are currently in the bottom of the Atlantic, many dangerous bad drivers are in the local quiet cemetery with nice walkways bordered by trees. Transportation didn’t get safer just because people learn from errors, but because the system does. The experience of the system is
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