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XiXiDu comments on Optimism versus cryonics - Less Wrong
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I like this post. Upvoted.
On a tangiential node, I had an experience today that made me take cryonics much more seriously. I had a (silly, in retrospect) near-miss with serious injury, and I realized that I was afraid. Ridiculously, helplessly, calling-on-imaginary-God-for-mercy afraid. I had vastly underestimated how much I cared about my own physical safety, and how helpless I become when it's threatened. I feel much less cavalier about my own body now.
So, you know, freezing myself looks more appealing now that I know that I'm scared. I can see why I'd want to have somewhere to wake up to, if I died.
It actually didn't occur to me to wear a helmet in a car.
For me this was sort of the dividing line between "I'm young, I'll live forever" and "Wait, shit, I won't, I really do need to do all those boring things like use hand sanitizer and look both ways before crossing the street and take my vitamins."
Wait, should I wear a helmet in my car? :) It sounds plausible. I'd say no, because of reduced visibility increasing odds of accident, and already ample protection from airbags, seatbelt, and crumple-zone into rigid structure protecting against crushing.
A good motorcycle helmet provides well over 180 degrees of side vision, while your peripheral vision can only reach about 160 degrees. While I can't find a reference, IIRC the percentage of motorcycling fatalities resulting from head injuries is around 50%, and the percentage of car fatalities resulting from head injuries is considerably higher. So, disregarding the vastly diminished prior probability of all-cause fatalities in a car, you should actually be more adamantly in favor of helmet use in a car than on a motorcycle.
Why would we disregard that?