Brave people push boundaries so that less brave people can read things in books.
Edit: I assume the people downvoting this obvious truth think I'm calling them cowards. I assure you I will be right there with you curled up reading books about caving. Fuck all that.
"Because it's there," I assume. But if you're gonna have a potentially dangerous hobby, you should at least be sure to take the necessary precautions before risking your life.
Like having a good life insurance policy that pays out even if you die doing something stupid? And maybe having a fake tooth filled with cyanide so you can go out quickly instead of dying of exposure?