When you are truly living on the edge, maybe going into space, or traipsing to the North Pole, there's no room at all for error. It's a luxury you can't afford. Make a mistake and you die. For the rest of us, though, it's not quite as serious. Being wrong won't kill us, it's just something we'd prefer to avoid. We have the privilege of being wrong. You won't advance your cause or discover new truths if you're obsessed with being right all the time. And the only way not to be right all the time (and to compound your advantage and accomplish even more than you already have set out to) is to be as open to being wrong as often as you can afford to be.