> The biggest problem in car accidents is speed differential.
Yes: it is way more dangerous to slam into a stationary object going 80mph than it is to be rear-ended by an object going 80mph while you're going 65. Only a 15mph differential in the initial collision.
Also, it almost never happens, compared to vehicles losing control due to excessive speed.
That is the fault of the person driving faster than the speed limit, not the person driving the speed limit.
Many people involved in car accidents are dead even though they were in the right.
Motorcyclists can give you long lectures about this.
Driving at the speed limit will not meaningfully increase the chance of an accident.
Until it does.
The biggest problem in car accidents is speed differential. When you are not driving the prevailing speed, your speed differential is significantly higher and the accident will be worse than average.