11/18/2011 01:26 pm ET Updated Nov 18, 2011

The Silicon Valley Of Shit: Nairobi Is Ground Zero For Sanitation Innovation

A “flying toilet” is a particularly Kenyan device: a small grocery bag used as a toilet and then tossed out the window onto the street. The first encounter is both fascinating and grotesque—was that seriously what I just stepped on?

Granted, finding a decent bathroom facility in a big city is never a fun endeavor. Even in the developed world, you can face an endless search for a public bathroom, perhaps ending with a dip into a Starbucks or McDonalds to purchase a latté and the privilege of a (relatively) clean bathroom for $2.