I thought his conversation was about saving someone yourself before 911 get's there. There is a big difference between someone passing out and the heart stopping in front of you (or someone drowning or whatever) and doing CPR instantly. Seems that would be very advisable and useful. Telling people it's useless because you base it on what your friends in the field say after arriving 15 minutes later doesn't seem a fair comparison. And misleading. Plus if there is any chance at all its worth trying either way.
Well, its actually more statistics showing that CPR only really does anything like 2% of the time, rest of the time its either useless, done wrong, or just hurts the guy we are doing CPR wrong.
We mostly do it because we don't really have another alternative.
Yup. Beats standing around with your thumb up your ass, which has been shown to be 98.8% ineffective.
Unless of course, you do it on a guy who probably didn't need it, and you break a guys ribcage for no real reason.