july

Wearing a helmet is probably the safest way to not get a concussion but do you really want to optimize your life for defensive measures - imagine wear a helmet doing everything in your life like going to a meeting, enjoying dinner or having sex - I think the answer is no

creating and destroying; flying cars, roc.camera, july.rocks

A lot of climbers don't wear helmets because it gives a false sense of security, you climb beyond your skills and put yourself in positions where no amount of helmet will do you any good at all.