Paul Graham talks about "The Top Idea in Your Head". What resonated with me was the idea that the most pertinent thing on your mind will show itself while you're taking a shower. As any creator will know, this is undisputedly true; oftentimes the moment where everything churning in your head finally clicks is when your head is soaking in relaxing warm water and your brain is disarmed of its usual predilections.
And that leads to my biggest qualm: Being unable to record those thoughts in an agile manner (like one would do with pen and paper). Ubiquitous capture is exactly impossible where it's needed the most!
Has anyone got an answer yet? I'd gladly pay for it.