In conclusion: If you take your problem to an expert, don’t expect the overall best solution. Expect an approach that can be solved with the expert’s tool kit. The brain is not a central computer. Rather, it is a Swiss Army knife with many specialized tools. Unfortunately, our “pocketknives” are incomplete. Given our life experiences and our professional expertise, we already possess a few blades. But to better equip ourselves, we must try to add two or three additional tools to our repertoire—mental models that are far afield from our areas of expertise.
