The effectiveness of a physical strike is largely determined by velocity rather than mass alone.

“the most lethal bullets fired out of a rifle are not the fattest heaviest bullets they're very small that you know the m16 rifle high velocity high muzzle velocity is it like a practice a 22 caliber somewhere around 0.223 yeah so basically a 22 caliber bullet so they they said let's give up some mas”

Athletic performances like breaking and BMX are fundamentally about the complex management of rigid body rotation across multiple axes.

“these two sports are fundamentally about rigid body rotation when you have things that are spinning around other things systems of rotation really right”