Thought-provoking metaphor. Upon reflection, I think the article emphasizes the wrong aspect of this -- the drip part itself -- at the expense of the more interesting elements (the length and breadth of the horizontal line, the amount of paint, etc).<p>CURIOSITY seems to be the horizontal line; i.e. the person's latent curiosity about things, domains, areas, etc, and the urge to explore/discover is what drives the horizontal movement.<p>The 'amount of paint' variable, which is clearly the most important part of the physical reality underpinning the metaphor, would perhaps be akin to COMPETENCE. Competence is a stand-in word for intelligence, grit, suitable background knowledge, and probably a host of other qualities.<p>So what's the grand conclusion here? That highly curious and highly competent people tend to be prolific in their output?<p>Not so surprising perhaps, but fun to think about.