Common Belief

Common belief, a concept crucial for understanding coordinated human behavior, is being re-examined to determine its necessity and sufficient conditions for joint action. Research is exploring alternative models that may better explain how individuals engage in shared activities even without fully shared beliefs, focusing on the role of action and readily achievable belief variants. This refined understanding of common belief has implications for diverse fields, including human-computer interaction (particularly concerning trust in AI predictions) and the design of robust and reliable systems, as evidenced by efforts to improve confidence assessment in safety-critical applications.