The post resonates deeply with me. I am a health professional in diagnostics and through the years I have observed different extremes in approaches to solving diagnostic challenges - the one extreme is to rely on "knowing", the other on "thinking/reasoning". The former is usually very fast, but not easily explainable - just like pattern recognition. The latter was slow, but could give a solution from "first principles" and possibly not described before. Of course it's a spectrum and the thinking part requires and includes the deep enough "knowing" part. One usually uses both approaches on daily work, but I have seen some people who relied much more on knowing than thinking/reasoning, sometimes to the extreme (as in refusing to diagnose a condition on their own because they "have not seen this before").