When your tyre blows or your car rolls-it can take a long time to stop at 70mph.
I have speeded-guilty but not anymore-waste of petrol and dangerous-you wise up but 70-80 at times then chuck cruise control on at 70.
When driving at 70mph and coming to stop or slip road, count in your head how long it takes to stop and think about the distance and time it would take to stop if you had a crash or an accident.
Imagine you caused an accidental death by speeding or someone did it and killed your friend, family or loved one-angry at them?