From an appearance/soft-skills perspective, it is one possible mode of the assertion of social dominance based on skill/expertise. It is a more aggressive one, hence it is more likely to backfire. There are far better ways to assert social dominance based on skill/expertise which are more socially productive and far less prone to backfire.
From a mental functionality perspective, you're being arrogant when you are prone to false negatives when judging other people and their input and prone to false positives when judging your own.
how do you avoid being arrogant?
Humility. Spend time at the bottom of a learning curve. Truly take a deep dive into a different mental model of the world. Prove the null hypothesis. "If you're the smartest guy in the room, you're in the wrong room." If it's the case that no matter what you try, you can't ever find your way to a place where you're mistaken, you missed some big facet of reality, or you're a beginner again, then congrats: You Are Arrogant!
From an appearance/soft-skills perspective, it is one possible mode of the assertion of social dominance based on skill/expertise. It is a more aggressive one, hence it is more likely to backfire. There are far better ways to assert social dominance based on skill/expertise which are more socially productive and far less prone to backfire.
From a mental functionality perspective, you're being arrogant when you are prone to false negatives when judging other people and their input and prone to false positives when judging your own.
how do you avoid being arrogant?
Humility. Spend time at the bottom of a learning curve. Truly take a deep dive into a different mental model of the world. Prove the null hypothesis. "If you're the smartest guy in the room, you're in the wrong room." If it's the case that no matter what you try, you can't ever find your way to a place where you're mistaken, you missed some big facet of reality, or you're a beginner again, then congrats: You Are Arrogant!