Well then that's a score; if people are excited and asking about when it's ready, that's a perfect opportunity to say "I'm not entirely sure yet, because ..." a

Well then that's a score; if people are excited and asking about when it's ready, that's a perfect opportunity to say "I'm not entirely sure yet, because ..." and try to explain the interlinked problems to them. In the process of explaining them, you'll eventually clarify your own understanding to the point of an "aha" moment. I spent about an hour last night trying to explain the basics of something I've been working on to a (non-programmer) girlfriend, and had several "aha" moments about the much deeper details of the design simply from trying to explain the surface.