dakine is getting it - you guys somehow confuse the snow for cement, through which the ski cannot possibly carve a path. Also, jamt's phisics says that banging your head into a non-movable wall, will not hurt, because you cant really feel a force when the wall is not moving in your direction... that's a good experiment to try at home for the physics aficionados
Considering there is considerable weight on the inside ski here, think how much would the outside really bend with all weight on it: http://media.oregonlive.com/olympics_impact/photo/tommy-ford-skijpg-f9ab154856f90335.jpg - if you dont think that ski will push back at his legs when released, I really want whatever you are smoking.
Well try the experiment......put a ski at that angle...see how much it bends...let it go.
As for your head vs wall experiment...I tried it....but I did it like skiing....I found a curved wall, like a carved turn...and rubbed my head along the wall, around the curve (really messed my hair up)...but you know what? Didnt hurt a bit! Your skis are sliding along the snow...not smashing into it.
To smash into the snow would mean coming off a jump...but I am sure you have skied enought to enough, the steeper the landing, the softer the landing...the flatter, the harder......normal skiing, is like a landing into a perfect half pipe....jumping...is different...of course, even with jumping, you dont "bounce" on landing. Snow isnt "springy".