Amazing, crazy, stupid, call it what you want and think what your want, it's all a correct assessment in some sort of way and really its no different then some other extreme things people do. like jumping out of planes, base jumping, etc...or this...http://www.snotr.com/video/12987/Alex_Honnold_Free_Soloing
some jobs are just as dangerous, like the guys on deadliest catch..