> You could still replace the first visit with a rock or automated response. Not really, because the doctor would have to receive a first visit before a second

> You could still replace the first visit with a rock or automated response. Not really, because the doctor would have to receive a first visit before a second visit, and would evaluate how to deal with each one. This is an oversimplification and it doesn't work. > He didn't provide any more value than a rock without a salary though. He hired people. Rocks cannot hire people. So he absolutely did provide more value than a rock. In fact, a college degree is a pretty decent heuristic all around. It'll miss a lot of good candidates, but overall the candidates who pass his filter will be mostly sound (as was mentioned in the example). The overarching problem is that these are oversimplified examples with oversimplified explanations to support his oversimplified conclusion. Real life doesn't work that way. Real life is why we need heuristics in the first place.