This was it. I was going to bite it. Having picked up way too much speed on way too steep terrain, I was wobbling on one ski as my balance all but disintegrated.Any second, I would feel that sudden sensation of doom, that jerking snap of the skis breaking away, and maybe even the whiplash thud of my head smacking the packed-down snow.And I'm doing this for fun, right?Suddenly, it's like that scene in "Star Wars." You know, where Luke is stressed about tagging the Death Star, and he hears the reassuring voice of Obi-Wan Kenobi telling him to use …