I’ve worked in television, and there are a hundred people between you and the audience. I’ve worked in film, and there are a thousand people between you and the audience. In comics, there’s me and an artist, presenting our stories to you without filters or significant hurdles, in a cheap, simple, portable form. Comics are a mature technology. Their control of time — provided you’re not intent on reversing universes (or even if you are) — makes them the best educational tool in the world. Hell, intelligence agencies have used comics to teach people how to dissent and perform sabotage.
When done right, comics are a cognitive whetstone, providing two or three or more different but entangled streams of information in a single panel. Processing what you’re being shown, along with what’s being said, along with what you’re being told, in conjunction with the shifting multiple velocities of imaginary time, and the action of the space between panels that Scott McCloud defines as closure… Comics require a little more of your brain than other visual media. They should just hand them out to being to stave off Alzheimer’s.
-Warren Ellis from his talk at Dundee University