matticus
Guru
So we agree that 0mph is safe? Good.Disagree, it's all about the appropriate/inappropriate speed, it could well be the 0mph is the appropriate speed & 1mph is inappropriate, speed rarely kills, it's the car/driver that does that.
How about 163mph? Would you agree that is very very rarely safe?
(30mph is really very dangerous, compared to 0mph. Therefore drivers should think very carefully before changing speed from 0 to 30mph. They should continue to think carefully until they've reduced the speed back to 0mph, not assume that it's safe just because nothing bad has happened for quite a long time.)