全員が合理的なのに、なぜ社会は壊れるのか｜共有地の悲劇と社会的ジレンマ

Why does society as a whole fall apart when everyone is supposedly acting rationally? From shared pastures, fisheries resources, forests, traffic congestion, and environmental problems, to the atmosphere in companies and on social media—there's a structure at play where "the right choice for the individual" can lead to catastrophic consequences for the whole. This time, we'll consider why individual rationality and collective rationality diverge, based on the "tragedy of the commons" and "social dilemmas." Society doesn't collapse because of bad people. Rather, it's precisely because everyone acts rationally that the whole can crumble. Understanding this structure gives us a slightly different perspective on environmental problems, organizational failures, and the necessity of rules and systems. Garrett Hardin, "The Tragedy of the Commons" Toshio Yamagishi, "Social Dilemmas: From 'Environmental Destruction' to 'Bullying'" Eleanor Ostrom, "Governance of the Commons: People's Collaboration and the Evolution of Institutions" 00:00 - Opening: Everyone Loses Out Even Though No One Is at Fault 01:52 - Chapter 1: The More Rational a Person Is, the More They Empty the Commons 04:22 - Chapter 2: You Don't Realize Something's Broken Until It Breaks 06:31 - Chapter 3: Why Does Freedom Dilute Responsibility? 08:36 - Chapter 4: So, Should We Regulate It? 11:14 - Chapter 5: Self-Governance Isn't About Playing Friendship 13:16 - Chapter 6: There Are Commons Even on Screens 14:35 - Chapter 7: The More Freely You Use Something, the More Design It Needs 16:41 - Epilogue: It's Not the Bad Guys Who Destroy the Commons #TragedyOfTheCommons #SocialDilemma #Sociology