Humans are really good at parsing visual data, especially in lights.

I really wish North America would approve some sort of a specification for graduated brake lights. I want a strip of LEDs for the center brake light, and the harder I press on the brake, the more LEDs light, starting at the center, growing outwards, and for full ABS-engaging braking, the whole strip should flash as a warning to approaching drivers.

Just the flashing brake lights were approved in Europe, but I don't think it goes nearly far enough.