A little off-topic, but what little experience I have about successfully shipping successful software is that it's all about Dwight's aphorism that planning is

A little off-topic, but what little experience I have about successfully shipping successful software is that it's all about Dwight's aphorism that planning is essential but plans are inconsequential. When you take the mindset that planning exists to help you observe and react to future discoveries rather than to detail exactly what you're going to do regardless of future discoveries, all sorts of serendipity is showered on a development effort. Thanks, Paul, and sorry about the alliteration.