Consciousness is fundamentally temporal—not merely occurring in time, but constituted through time. We propose that phenomenal subjectivity emerges from temporally extended memory accumulation rather than instantaneous processing. Drawing on hierarchical cognition (Author, in press-c), need-based memory organization (Author, in press-b), and attention-driven differentiation (Author, in press-a), we show how consciousness emerges gradually as biological needs organize accumulating experiences into a unified subjective perspective termed 'My World.' The theory addresses longstanding puzzles: why consciousness develops gradually rather than appearing suddenly (Piaget, 1954; Rochat, 2003); why amnesia fragments personal identity (Corkin, 2013); why identical sensory inputs generate different phenomenal character across expertise levels. We specify four developmental stages from pre-conscious processing to mature self-consciousness, derive twelve testable predictions, compare our account with global workspace theory (Baars, 1988; Dehaene & Naccache, 2001) and integrated information theory (Tononi, 2004), analyze patient H.M.'s case demonstrating My World fragmentation, and address implications for infant consciousness, clinical disorders, artificial consciousness, personal identity, and the hard problem (Chalmers, 1996). The theory resolves the 'sudden appearance' puzzle by showing consciousness has no discrete threshold but emerges continuously as memory-based subjectivity accrues temporal depth.Unique contribution relative to My World paper: The companion paper My World (Author, in press-b) introduces the My World construct and explains how it produces phenomenal subjectivity. The present paper's UNIQUE contribution is the argument that temporality is CONSTITUTIVE of My World rather than merely incidental to it—that My World cannot exist in an instant, however richly characterized, but requires temporal depth as a structural necessity. Three specific contributions not made in the My World paper: (1) The 'Sudden Appearance' problem—showing that consciousness cannot switch on discretely when neural thresholds are met. (2) The H.M. analysis—showing that My World fragmentation through memory loss produces precisely the predicted pattern of identity dissolution. (3) The 12 developmental predictions about consciousness timing in infancy that are uniquely generated by the temporal account. Readers familiar with the My World paper should find here specifically the temporal extension of that framework.
Heng Liu (Sat,) studied this question.
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