Great read! This really ties up together with the idea of "keep shipping" - while working on a startup recently - I found myself spending a lot of time thinking about what if this or what if that. The kind of logic that paralyzes you. This is specifically a problem for perfectionists and very intelligent people - you're either afraid it wont be perfect or spend so much time thinking of the most efficient or beautiful solution that in the mean time someone else - may have already solved it. That experience really taught me to keep shipping - stuff wont work - even if it isn't one of those massively hard problems - sometimes things just dont work. The trick is to keep shipping and that 1% will go up to much more!