srothstein wrote:There is a reason for those weird limits that are not round numbers. And, believe it or not, you just proved that first part of the reason is correct.
The people making those signs and rules know that we get used to round numbers for limits. They think we will start to disregard them after a while. But putting an unusual number (19, 7, etc.) will draw attention to the sign and get people to remember it. The more you remember the sign, the mor elikely you are to obey the concept. You might not slow down to exactly 19, but you will slow much further down than when the sign says 20.
So 19 is the new 20?
