I get what you're saying here (and generally agree), but I really think it's worth taking a step back when "the law is too complicated for humans to follow it;

I get what you're saying here (and generally agree), but I really think it's worth taking a step back when "the law is too complicated for humans to follow it; machine-readable versions should be available" starts making sense. Imagine if the speed limit was a function of current local wind speed (as measured by one of three airports, depending on the time of day), tire pressure, the azimuth of the sun, etc, and that large companies had digital speed limit signs outlawed. Saying, "Oh, we'll just mandate that all cars carry the necessary equipment to calculate the current speed limit" is probably the wrong approach. The solution is to do away with the convoluted calculation because it doesn't add value in the first place.