Positive psychology 4.0: a science of consequence for a world that can no longer wait

Positive psychology's existing frameworks are not keeping pace with the convergent crises and technological transformations reshaping human experience. This perspective paper proposes the Fourth Wave of Positive Psychology (PP 4.0): a meta-integrative reconceptualization of the field through four simultaneous, interdependent shifts. First, the regenerative revolution repositions wellbeing's basic unit of analysis from individual optimization to the health of life-sustaining systems, recognizing that personal flourishing cannot be separated from systemic regeneration. Second, the precision revolution replaces nomothetic averaging with idiographic methodologies, including digital phenotyping and person-specific models, to capture how wellbeing emerges uniquely within each person's context. Third, the computational revolution integrates human-AI collaboration into research and practice through human-in-the-loop protocols that augment human wisdom without replacing it. Fourth, the positive ethics revolution establishes governance frameworks that prevent algorithmic bias, preserve human agency under algorithmic conditions, and ensure equitable access to emerging technologies. The paper further identifies three emergent challenges arising from the convergence of these revolutions: the algorithmic capture of wellbeing definitions, the agency-optimization paradox addressed by the AI-IARA framework, and the collision of temporal scales from real-time intervention to intergenerational stewardship. Drawing on parallel innovations in precision medicine, digital twin technology, biosensor monitoring, and network neuroscience, the paper articulates a methodological architecture for conducting PP 4.0 research, demonstrates its integration through the Adaptive Twin-Led Assessment System (ATLAS), and projects concrete developments through 2035. This framework is presented as both a scientific contribution offering testable propositions and a normative call to reorient the field's purpose. PP 4.0 does not extend positive psychology. It reimagines the discipline as one capable of addressing existential threats, honoring epistemological pluralism, and advancing collective regenerative flourishing rather than extracting individual happiness from depleting systems.