Sometime in this century, people will be flying autonomous aircraft—the equivalent of the self-driving car. Personal air vehicles, perhaps powered by electric batteries, can help relieve our overcrowded airports, save land, and minimize emissions.
Read MoreIt really wasn’t that long ago when the two greatest superpowers were vying to put satellites into space. Now, 50 nations have their own satellites in low Earth orbit. If you’re a Thailand, say, you can call Space Systems/Loral, a Canadian-owned company based in Palo Alto, California, and tell them you want to put a satellite into geostationary orbit for television broadcasting or military communications. You can have the thing in orbit 25,000 miles above Earth within two years.
