This week Bruce opens the episode talking about the importance of mobility: the freedom to leave a community if the leaders start violating the original principles.  Prabhakar agrees, but adds that a) too much freedom to exit discourages people from resolving conflict, and b) sometimes the original principles no longer reflect what the community needs to thrive. Bruce suggests that we should instead focus on the larger Purpose of the community (what Prabhakar calls Vision) more than the current Principles (or Values).  Prabhakar likes that formulation, but suggests even more important is developing the skill of learning how to evolve those, in order to: