Who would have guessed that ownership was so interesting? Who owns the water under your land? Can you pump out so much that your neighbor's wells run dry? Who owns the air above your house? Can you shoot down a drone flying over it? How about a drone looking in your windows? Can the company that made your smart phone decide you can only run their apps? Can the company that made your car decide you can only use their repair parts? Could they make you buy only their brand of gasoline?