You'd have that range whether people went at the speed limit, above the speed limit, or below the speed limit. As long as speed limits are made with actual speeds taken into account (they are) that argument is irrelevant to whether you should speed. It just means that if you really want to be safe to hit someone you shouldn't go above 25mph, no matter what the speed limit is.
> The strangest thing about watching this story is that people who are apparently ignorant of this still feel sufficiently certain of the relative unimportance of speed differences in this range to sneer at other people for commenting on it.
The speed limit here was at least 40, wasn't it? Your own numbers say that the differences are unimportant above 40.
