Imagine for a moment that you want to make a shirt. So you go to the fabric store and buy some fabric that you like, maybe some thread and some buttons, and you come home and start cutting and stitching.
But you didn’t really think about your plan before you started. Part way through, you realize what you really want is a long-sleeved shirt you can wear to a fancy dinner party. But the fabric you bought is a loud pattern, you already cut out the wrong shape, and you only have …