The scientific method was perfected in the crucible of natural science, and physics in particular. And an old professor of mine once told me that a good theoretical physicist is intrinsically a lazy person. And so these heuristics of ignoring superfluous detail, simplifying the problem to its barest essentials, maybe even making a caricature out of it, solving that simpler problem. If you can’t solve that simpler problem, solve an even simpler problem. This actually works in physics. Because the universe is intrinsically a lazy place.