How All Sidewalks Should Be DesignedS

Walking might be good for us, but it's sure as hell boring too. So let's change all that by making sidewalks a place to have some fun.

Randal Munroe is sure on to something with the idea of variable speed conveyor belts. But high-five spots are just the beginning. I'm thinking obstacle courses, pugil stick battles and kinds of other crazy shit. Who's with me? [xkcd]