We present a simple argument using Promise Theory and dimensional analysis for the Dunbar scaling hierarchy, supported by recent data from group formation in Wikipedia editing. We show how the assumption of a common priority seeds group alignment until the costs associated with attending to the group outweigh the benefits in a detailed balance scenario. Subject to partial efficiency of implementing promised intentions, we can reproduce a series of compatible rates that balance growth with entropy.

翻译：我们利用承诺理论和量纲分析，结合近期维基百科编辑中群体形成的数据，提出了一个关于邓巴等级体系的简单论证。我们展示了共同优先级的假设如何促成群体趋同，直至在细致平衡情境下，关注群体所付出的成本超过收益。在承诺意图实现效率部分受限的条件下，我们可以复现一系列兼容的速率，这些速率平衡了增长与熵。