> I used to think it was a way to put the human body through emotions that we don't get through living in a civilization. But I'm not exactly sure that's true.

> I used to think it was a way to put the human body through emotions that we don't get through living in a civilization. But I'm not exactly sure that's true. I dunno. Riding my bike 100 miles, during which it hit 107°, made me think "Today is the day I am going to die of heatstroke." That's not a thought I have during regular, civilized life.