"Instead, over the past thirty years, in the world of action and adventure sports, in situations where ***** really were on the line, the bounds of the possible have been pushed further and faster than ever before in history. We've seen near-exponential growth in ultimate human performance, which is both hyperbolic paradox and considerable mystery. Somehow, a generation's worth of iconoclastic misfits have rewritten the rules of the feasible, not just raising the bar but often obliterating it altogether. And this brings up one final question: Where-if anywhere-do our actual limits lie?"

Source : Steven Kotler (2014). “The Rise of Superman: Decoding the Science of Ultimate Human Performance”, p.18, Houghton Mifflin Harcourt

You may also like: