The Autobahn has an ingeniuos solution. As you know, parts of the Autobahn have no speed limit and you had better be going well in excess of 100 mph in the left lane.
But traffic congestion has also hit the autobahn. So to maximize speeds and flow, traffic is regulated by a computer controlled system that posts variable speed limits so that during rush hour, cars are slowed down as they approach congested areas, reducing bottlenecks, and the speed and flow of cars is maximized.
I can live with being told to slow down for a while if I know it will get me through traffic at the fastest speed, and then I can go as fast as I want on the unregulated sections.
And to those that are yelling "Big Brother" about limiting your speed, if you have any modern car, they are all top speed limited by a chip in the FI system.
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Il faut de l'audace, encore de l'audace, toujours de l'audace
1980 3Rensho-- 1975 Raleigh Sprite 3spd
1990s Raleigh M20 MTB--2007 Windsor Hour (track)
1988 Ducati 750 F1