[mardifoufs]

What? Okay, so assume that most code doesn't last. It doesn't mean that you should purposefully make it brittle for basically no additional benefit? If as you say, it's about making the most with as little as possible (which is what the bridge analogy usually refers to), then surely adding a single function (to actually enforce the ordering you want) to make your code more robust is one of the best examples of that?