The Future Of Transportation -- Not Self-Driving, But Self-Flying

Just consider the analogy of landlines vs. mobile phones. Our cell phones free us from the limiting wired technology we used for over one hundred years, which connected us to the earth -- but tethered us to it, as well. In the same way wireless phones freed us from that wired tether, self-flying transportation could free us from the massive limitation of cars and highways. It would require no roads, signs or signals. You could travel in a three dimensional fashion, with massively more opportunities to avoid accidents.