I think this is an overly abstracted view of how transitions work. In reality, most trades are experiential-apprenticeship businesses, and technology advances s

I think this is an overly abstracted view of how transitions work. In reality, most trades are experiential-apprenticeship businesses, and technology advances slowly. For example, a 15-year-old car may run ignition with a distributor, while a newer one may have coil packs that receive signals from MOSFETs in the engine computer assembly. Fixing those two systems can be totally different despite the fact that both have engine control computers. Technological advance is not a step function and describing every transition as disruptive is not particularly meaningful even when it is true.