There's a kind of person who, when something goes wrong, needs to understand it completely. They'll bring it up again two weeks later, still working through it. They'll tell you exactly what they missed, what the early signals were, what they'd do if they could go back. They're not beating themselves up. They're solving a problem.
These are the people worth being around.
Most people do the opposite. They acknowledge the mistake, apologize if necessary, and move on as fast as possible. The discomfort of sitting with failure is too much. They'd rather get to the part where everything is fine again. The problem is that they carry the same vulnerability forward. The next version of that mistake is still coming.
The people who dig in are different. They treat their own failures like interesting puzzles. Something went wrong, and they want to know exactly how and why. Not for self-punishment. For calibration. Because understanding precisely what happened is the only way to actually change.
You can tell who these people are quickly. Ask them about a decision that didn't work out. Watch whether they tell you a story about external circumstances, or a story about what they were thinking and where that thinking was wrong. The first kind will blame the market, the timing, the other people. The second kind will tell you what they missed and why.
Be around the second kind. They are safer to build things with, safer to trust, and almost always more interesting to know.