Cool that you're responding here. Well, regarding robotics, I'm sure there's all sorts of problems when it comes to training models for them, but I'm not sure that Goodhart's law is one of them, unless you can give a concrete example. It's really geared towards social problems. Sure, some natural systems may also exhibit the kind of adaptive response that leads to breakdown of structural relattions (eg the cancer cells mentioned before may evolve to avoid detection by the AI), but that happens on completely different timescales.