Garbage City

I've blogged before about how great it would be to have a city with underground bike paths, replacing cars for most purposes. Almost everyone would ride a bike if they didn't need to worry about weather and traffic and hills. Even senior citizens would tool around in 3-wheelers with little effort.

It would also be great to have underground package delivery to your home via robots. Just order your groceries and whatnot via the Internet, then get an e-mail alert when the robot has delivered your go