Tatus
Not-So-Great White
science bitchConcussion happens inside the skull. There is no "blow" to soften from outside, it's the rapid deceleration that shakes the brain about.
If you were in a car without a seatbelt & came to a sudden stop you're kissing the windshield. In this instance you're the brain & the car is the skull. No amount of protection you put outside the vehicle is gonna lessen your impact with the windshield.