>The whole point of abstraction is to make those decisions once and isolate the complexity The point Sandi Metz is making is that it's often only obvious when

>The whole point of abstraction is to make those decisions once and isolate the complexity The point Sandi Metz is making is that it's often only obvious when you can do this in hindsight. Lots of things can look abstractions worthy but aren't - including things that are repeated 3 or even 10 times.