Sorry, I didn’t mean to say that I can’t challenge myself at all. In practice I do try to challenge myself. I am saying that debates, where other people challenge me, help me fill in the gaps where I miss things, or am not being objective.
Sometimes my inner dialogue says, “The way I’m thinking about this makes to me, and it seems logical and sound. I have tried but I can’t think of anything wrong with it.” And then I’ll explain my reasoning to someone who disagrees, and they might say for example, “but you haven’t considered this fact, or this possibility.” And they’re right, I haven’t. That doesn’t necessarily mean I’m wrong, or that they’re right, but it does mean that I haven’t been 100% effective at challenging myself to justify my own positions.
People who agree definitely can offer that, but people who disagree are going to be better at it and more motivated. They push you harder to strengthen your own reasoning and articulate it well. If you try to compare the two in practice I think you’ll notice a huge difference. I think it can be uncomfortable sometimes to challenge and be challenged, but it doesn’t need to be about status or putting other people down. In fact, it can be friendly and supportive. I really recommend it to people who enjoy critical thinking and want to challenge themselves in unexpected ways.