Piper publishes updated Philosophy Journal Paper Submission Policies at The Berlin Journal of Philosophy website. Awarded Women's Caucus for Art (WCA) Lifetime Achievement Award for "distinguished work as a philosopher and conceptual artist." Delivers "Lessons from the Playbook of Second Wave Feminism" to the National Academy of Art, Oslo. Premieres video lecture/screening/discussion, Passing Beyond Passing (2004), at IHME Days Festival in Helsinki. Posts "The Money Pump is Necessarily Diachronic" at APRA Philosophy page and PhilPapers.org. Creates Everything #24 for 8th Shenzhen Sculpture Biennale; makes first trip to China. Delivers "Playing by the Rules I: Two- or More-Person Games" at Shenzhen OCAT Library. Premieres The Probable Trust Registry at the Elizabeth Dee Gallery, New York. Delivers "The Logic of Kant's Categorical 'Imperative'" at the St. Andrews University Workshop, Kant & Schopenhauer /Ethics & Aesthetics. Receives and accepts invitation from Museum of Modern Art, New York to do comprehensive travelling retrospective, to open in 2018. Learns Yoga Sutras I.36-51, II.1-12 by heart. Attends annual UK Kant Society Conference at Oxford. Delivers "Second-Wave Feminism: Unfinished Business," at the University of Hull.