It took 40 years to "prove" that smoking causes cancer.
If you really believe that EVERY major speed sport sanctioning body in the world is wrong about helmets feel free to strew your brains on the hill.
You and the Harley Neanderthals that argue against helmets are in the same group.
Eligible for the Darwin Award!
Hate to be the one to break it to you, but recreational skiing and motorcycling on public roads hold significantly different risks. I've been on the road for over 35 years (with a helmet). I've been skiing for 45 years without. So far my risk assessment has played out well....
And yeah, it's just like smoking