Not the most convincing advertisement

Surfers try to scare away would-be-surfers. Less waves for thee, more waves for me. I don't even have a girlfriend.

He's using an anecdote. So, yeah, not a study.

The only point being made is panicked breathing before disaster, versus a little training and a few controlled breaths before disaster. And that he also experienced maybe some of the same mind altering effects of breathing.

Since we all breath, I think in this type of thread we'll find lots of anecdotes around this subject.

Just a different type of fun. I find avalanche training to have a similar effect for backcountry.

For some it's sobering, for others it's terrifying.

I find it highly motivating