Gee, maybe I need to stop wearing my helmet . No wait, I'm safe; way over 37 now.Ripcord – Redpoint Travel Protection
www.ripcordrescuetravelinsurance.com
Skier fatalities: Myths about who dies, and where, debunked
The average person who died on the slopes of U.S. ski resorts during the 2015-16 season was a 30-something experienced male skier wearing a helmet who hit a tree going too fast on an intermediate r…www.denverpost.com
From ^^: "Snow conditions affect injury patterns, as well. Hard pack snow generally yields high-speed and impact injuries. Powder and heavy snow is associated with more torsional or twisting injuries. Quick changes in snow conditions, such as hitting the line between groomed and ungroomed snow, may cause a fall that leads to an injury."
High speed is how you die. Torsional is how you end a season, but usually not a life.
Of course higher speeds are deadlier. We don't need a study to know that.
Lot's of skiers don't sharpen their edges every night. Dull edges matter when the snow is hard and icy, and cause more accidents? Who knew?
As far as the scenario of out of control high speed skier colliding with skier ahead of them (breaking rule 1 and rule 2), I don't think less grooming will cure the problem. Speeders are going to speed, whether they have a groomed run to ski on or not. Also, if speeders have fewer groomed runs to ski on, their preferred terrain, we will just have a higher concentration of them on those runs (along with more beginners on them), making the collisions more likely.