Okay, here’s the situation. Every car has a magic device on board which regulates how fast it can go. The only cars which are exempt are emergency vehicles. Everyone else, without exception, has a car with a magic device which regulates how fast it can go. The way the device works is that it knows (by magic) the speed limit for every street in America. Once it’s on a street, it instantly recalibrates so you can’t exceed the speed limit on that street.
For example, if you’re on a street which has a maximum speed limit of 15mph (maybe there’s a school on it or something) then, no matter what, you won’t be able to go above 15mph while you’re on that street. If the next street you go on has a speed limit of 30mph, you won’t be able to exceed that and so on.
It doesn’t matter how the device works (it’s magic), or how it knows what the speed limits are (more magic), and there’s no way to disable it or get around it. Legislators aren’t going to do anything to change the speed limits and fighting hypotheticals is punishable by death.
My question is, do you think such an arrangement would be better or worse than what we have at the moment and why?
P.S. - Motorbikes don’t exist. Don’t ask why. They just don’t.