https://docs.google.com/document/d/1Q6Dj9WAZxlfBhJSyS5on2rw3-if5cOV3oV-dQ3B0AHA/edit

The more people try to “innovate” transportation the closer it gets to going back to trains. Driverless cars, for efficiency have them communicate with eachother, to accelerate and brake at the same time, for example. That’s just less efficient and more expensive trains.