The political implications tied to self-driving cars are all scary.<p>The political implications tied to self-driving trains are not.<p>The difference being the rails that bind and inhibit true autonomy.<p>An internet of two-ton things hurtling at 60+ MPH should not be an idea tossed about dismissively. It should at least be locked into track systems, or loops as training wheels, for baby&#x27;s first sentient AI.