Commons Vol.5(issued on February 2026) (online) ISSN 2436-9187 Preface Preface: Commons, Vol. 5Takamitsu Yamamoto Peer-reviewed Articles How Chess Playing Skills Decline: An Autoethnographical Analysis of a Former National Champion’s Return to CompetitionAkira Watanabe The Rope-Impressed Inlay Patterns of Shimaoka Tatsuzo: From the Perspective of “Individuality” and “Anonymity”Futa Sasa A Comparative Analysis of Social Media Policies in Japanese Prefectural GovernmentsJin Wen Displacement and Reinvention: Cowboy Masculinity in Cormac McCarthy’s All the Pretty HorsesQin Rong The Responsive Genesis of Key-person Creativity in Endogenous Development: A Descriptive Inquiry into Regional Practice Focusing on Potential RealityTatsuo Murakami Submission Guidelines Editorial and Peer-review Policy Publication Data Download a whole copy edited and issued by Future of Humanity Research Center, Institute of Science Tokyo