Upload & Sell: Off
It seems the folks that have posted here have followed this much more closely than I have, but I too do not think I would let my son play with the risk of brain injury that can't be refuted.
Can I ask a question to those that might know, are most concussions helmet to helmet, or is it equally distributed helmet to ground or helmet to body? But I wonder out loud, why can we make safer helmets to better protect against brain injury via concussion? Why hasn't some material science been implemented to protect the shell from the blunt force trauma? Would some layer of rubber or dense gel encasing the helmet help reduce concussion? Just to break out some science, F=MA, and A=v/time. So if we lengthen the time to change from high to zero Velocity form near zero to some non-zero number, it would seem to lower A, and the F by orders of magnitude? Do we know why this hasn't been explored?