Which do humans use more for communication and reasoning - words or visuals? Considering that we have developed elaborate languages but done relatively little in the way of visual non-word communication, I would deduce that words and symbols are generally a superior medium. The graphs just seemed a bit cluttered towards the end I think. Interesting though.

I do still have a fondness of flow-based programming, as is used in Kamaelia, twisted flow, or graphical VHDL environments though.