Rabbitte's Law is a principle that states that the complexity of a system increases with the number of people involved in it. This means that as more individuals participate in a project or organization, the potential for misunderstandings, miscommunications, and inefficiencies grows. The law highlights the challenges of collaboration, suggesting that larger groups may struggle to maintain clarity and cohesion. It serves as a reminder for leaders to consider the dynamics of teamwork and to implement strategies that facilitate effective communication and coordination among team members.