Riding fixed gear is like driving without brake lights

Very good point. Didn't Jaguar develop this recently though? Apparently it's a big difference with electric cars, the deceleration from just taking your foot off the throttle is much more noticeable.

Are you are car driver?

I'm pretty sure driving instructors teach that you gear down to slow down... Cars being a form of fixed wheel after all. (At least they did in the 90's... Snotters?)

So in fact slowing using a fixed wheel is the same as slowing a car by reducing pressure on the accelerator or gearing down. (Which doesn't involve brake lights)