I'm most excited to see them iterate on the videos themselves.<p>The videos are already excellent, of course, but there's incredible potential to increase their production value. By combining a director's ability to grab and hold on to viewer's attention, with the narrative power of a great writer, hundreds of concepts could be explained in ways that were both subtle and highly compelling.<p>... the thought of Khan Academy collaborating with, say, Pixar, sends shivers down my spine.