We develop a structural atlas of meta-existence by interpreting metanumbers as harmonic objects rather than quantitative magnitudes. Under the constraint of bidirectional time, meta-existence admits a rich class of admissible structures, including harmonic cycles, phase boundaries, intrinsic duration, palindromic melodies, and chimera configurations. We classify which transitions are structurally admissible, which generate only internal refinement, and which are prohibited by temporal symmetry. Palindromic and chimera structures enable complex polyphony and symphonic-scale organization without producing history or statistical accumulation. This framework establishes meta-existence as a structural reservoir from which classical number, rhythm, and visible reality emerge only after temporal asymmetrization and selection.
David Sepiashvili (Sat,) studied this question.
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