You're just plain wrong. You need foam cushion to slow the acceleration of your head, soft snow or not. Even in wakeboarding the helmet debate came up, with regards to a helmet adding surface area, supposedly slowing your head down faster rather than the skull "slicing through the water," but again, science proved the cushion was more critical than the difference in surface area. The "inside of the helmet is actually quite hard" like wtf?? It's supposed to fit flush to your skull, as in, your head shouldn't bang against the inside on a fall. It's supposed to be an extension of your skull basically. Science doesn't lie, bro, there are people with fuckin doctorate degrees that will take your argument to hell and back. Hope you never go into a coma man. If helmets have proven to be effective even in WATER, then it applies for even the softest of snow.