> Things like traffic signals that actively communicate their status This is a thing in Europe, and even some US cities - my Audi has traffic sign recognition

> Things like traffic signals that actively communicate their status This is a thing in Europe, and even some US cities - my Audi has traffic sign recognition and when at a compatible intersection knows what the light is at (by radio, not by light), and how long until it changes (will show a countdown in seconds til the next light change).