I've met him. I would say he is not a systematizer, and providing a clear concise description is not one of his strengths.
That said, it didn't seem that complex. My impression was just: find the coldest places you can go, do it repeatedly, breath while doing it and focus on your breath.
Eventually you will have both physical adaptation to the cold, but also new mental control.
There's a bit more to it in terms of specific techniques, but I believe that's the gist. If you watch some videos of his you can see a bit more elaboration, but you have to read in between the lines for a practical overview.
In fairness to him, to the extent he's discovered something, we don't have good ways of describing it.
That said, it didn't seem that complex. My impression was just: find the coldest places you can go, do it repeatedly, breath while doing it and focus on your breath.
Eventually you will have both physical adaptation to the cold, but also new mental control.
There's a bit more to it in terms of specific techniques, but I believe that's the gist. If you watch some videos of his you can see a bit more elaboration, but you have to read in between the lines for a practical overview.
In fairness to him, to the extent he's discovered something, we don't have good ways of describing it.