Earth's Finished! Time to Build a Backup

Imagine a world without public storage, in which there are no lockers of various sizes and price points. A world in which human beings redecorating or going through divorce or preserving fine china they have no intention of ever using — but would like to pass along to their children — cannot stow valuable junk safely. In a sense, that's the world that exists now, if you think of human beings as stuff, which means humanity has 7 billion of its valuables out in the open, with no contin