"I might be wrong, but…"

It sounds like a hedge. It functions as a permission slip — in two directions. It gives the other person license to disagree without escalating, because you've already signaled that escalation isn't necessary. And it gives you license to revise your position without losing face, because you've built in the possibility of error from the start. Both of these functions are underrated in conversation dynamics. Confidence with a softened edge travels further than certainty with no give. This is counterintuitive for people who equate directness with strength — but the person who is always certain, always right, always holding their position is actually brittle rather than strong. Strength that acknowledges the possibility of error is more resilient and more persuasive. It invites the other person into a conversation rather than a debate. The outcome of conversations is almost always better than the outcome of debates.