We tend to think of imagination and foresight like we are prone to think of life (sometimes) -- as an inscrutable flash of something from the outside that magically takes us over some large boundary in one atomic step. We even call it a flash (of insight), a eureka moment, a light bulb in our heads that suddenly turns on. But if you reflect on this phenomenon for a moment, you know you don't go suddenly from a blank mind to a fully formed solution. You were already thinking about the problem, and other near solutions that don't work, when suddenly you see a new connection that enables you to reuse familiar things on a novel way. Insight comes in small increments, leveraging what was already there.