[ovi256]

The speed limits are out of date. For highways, the original limits were set by breaking distances. Braking systems have improved tremendously (almost all disk brakes nowadays, ESC and ABS), reducing breaking distances, while the limits were never updated. So yeah, one can disagree with speed limits.

[TrickyRick]

Human reactions however, have not. Don't know where you live but most EU countries have a speed limit of around 100 km/h on the highway. This gives a stopping distance of around 100m for a modern well-maintained car (Which, let's be realistic, most are not). That's a long distance. Now if you take into account that a lot of countries have higher limits (France at 130 km/h for example) and that the braking distance increases exponentially I would disagree that they are outdated.