[lostctown]

This is a great goal to strive for. But to play devil's advocate, not all ideas and scopes are clear until several iterations in. Furthermore, some software projects carry around specific dependencies necessarily. If these dependencies are prone to change then there goes your stability. Given enough dependency incongruity, all projects die after a long enough period of non-maintenance.

You are totally correct by the way. I do agree that most software creators hand wave away the potential for their dependencies change faster than they can maintain their own product.