Speeding limits, what a farce.
New cars and fantastic technology of today have produced far safer autos and make driving much easier than when they came up with speed limits.
Point A to Point B for you, your passengers and other vehicles should be driven as safely as you can at All Times, Period. Go take some real driving lessons.
Speed is relative and I try to save Time when I drive, because you only have so much. How much time do you have to waste in traffic?
Raise the speed limits for proficient drivers. For me that would be about 30 or 40 over posted limits on 3 lane highways. Spend less time on the road.
Gubbermint = Fun Police