"if someone is going to rear-end you, there's not much you can do (even if you can see it coming), other than brace yourself" .. and by "brace yourself", you w

"if someone is going to rear-end you, there's not much you can do (even if you can see it coming), other than brace yourself" .. and by "brace yourself", you would touch your head to your headrest so that your neck has nowhere to move/flex with the impact. You want all of your body to be completely rearward in your seat. Also, while this may be morally negative, if there is another car in front of you, you could creep forward and lightly touch their car with your own, making yourself the middle ball in the Newtons Cradle[1] that your three cars now describe. [1] https://en.wikipedia.org/wiki/Newton%27s_cradle https://en.wikipedia.org/wiki/Newton%27s_cradle