Too often we get stuck in “functional fixedness,” a mindset where we see in things only their intended use, rather than their potential use. - Shane Parrish

Learn at least the basics of the realm you’re operating in, while acknowledging that you’re a Stranger, not a Lifer. However, keep in mind that basic information is easy to obtain and often gives the acquirer an unwarranted confidence. Talk to someone whose circle of competence in the area is strong. Take the time to do a bit of research to at least define questions you need to ask, and what information you need, to make a good decision. If you ask a person to answer the question for you, they’ll be giving you a fish. If you ask them detailed and thoughtful questions, you’ll learn how to fish. Furthermore, when you need the advice of others, especially in higher stakes situations, ask questions to probe the limits of their circles. Then ask yourself how the situation might influence the information they choose to provide you. Use a broad understanding of the basic mental models of the world to augment your limited understanding of the field in which you find yourself a Stranger. These will help you identify the foundational concepts that would be most useful. These then serve as a guide to help you navigate the situation you are in.

The stronger we are relative to others, the less willing we generally are to change. We see strength as an immediate advantage that we don’t want to compromise. However, it’s not strength that survives, but adaptability. Strength becomes rigidity.

Hadrian’s Wall thus was just one part of the overall strategy to maintain contrast between Roman territory and the tribes of the north.