It's also complete nonsense.
Really, some of you should go watch some of the violence and civil unrest on websites like live-leak (Warning: Don't actually do it, because it'll probably mess you up.) You can have your legs blown off, and still be conscious for it. You can be shot, repeatedly, and still be conscious and lucid.
An example (which was recently made into a movie): Marcus Lutrell was shot repeatedly, had several shrapnel wounds, several broken bones, and he managed to continue to fight and crawl around during a heated battle in Afghanistan. A battle that lasted hours upon hours. He was still fully conscious.
Humans can survive a lot of brutal damage to the body, and even end up being "perfectly fine" afterward.
It was a hard hit that swung past his head and tore his ear loose. Happens to boxers. How is this debate *still* raging on?