Speed is as much needed as slow. But speed without minimum control limit (20kmph) and maximum control limit (40 kmph) will be insane. So vehicle riders must learn to apply mind on their mind again "by being moderate in their moderate speed" so that they can enjoy speed and safety for their self and other/s. Life on road is technique. That technique is relative function between speed and safety towards reaching and staying at destination. Avoid devil(being democratic to prevail as imperial-minded) controlling mind while driving. Road is dynamic movement between fellow drivers and self.