I think about the all the time, as I'm in one of tens of thousands of cars blowing by "55 mph" signs at 75-80 mph regularly, right past cops who are supposedly

I think about the all the time, as I'm in one of tens of thousands of cars blowing by "55 mph" signs at 75-80 mph regularly, right past cops who are supposedly looking for "speeders", etc. obviously if civil society wanted to actually eliminate "speeding" this solution is one of many that can do it immediately. however I suspect there are various large political roadblocks, not the least of which it would eliminate the jobs of cops who sit on roadsides and make money giving out tickets but I'm sure also including car manufacturers, consumers, maybe DMVs for some reason I can't think of, etc. you know it's one of those things that would be commonplace in an imaginary "imagine we traveled 50 years into the future" things, but how it actually happens is not at all clear.