This seems related to another issue I've been thinking about lately: how to effectively measure productivity. I've been working on an MVP for a startup for a lo

This seems related to another issue I've been thinking about lately: how to effectively measure productivity. I've been working on an MVP for a startup for a lot longer than I'd like. I've done a lot of work, but have gone down so many dead ends or potential "tarpits" that I feel unproductive, because the dead ends result in nothing useful... except learning why they're dead ends. But how do I judge the most useful (and therefore "productive") thing to do before I do it, since something may become a dead end? I don't know.