If you put everything in your house up on 20-ft-high shelves, then you'll need a ladder to reach anything. I don't need a ladder to reach anything in my house,

If you put everything in your house up on 20-ft-high shelves, then you'll need a ladder to reach anything. I don't need a ladder to reach anything in my house, because I don't keep things up on 20-ft-high-shelves. We used to design cities so that your school, child care, stores, gyms, club meetings, and everything else, were in one neighborhood. Why would you want them anywhere else? Now we build cities so that these things are far from one another. It's like putting everything up on 20-ft-high-shelves and insisting every house needs a series of ladders.