LSED · Chapter 12 · Appendix · Section 3 Population Ontology: The Fracture of the Phylogenetic Tree and the East Asian Continuum

This section argues, within the LSED framework, that: Luxi is the mechanistic-layer candidate core phase-transition position of the MIS 4 phase-transition–dispersal; the continuous morphological development of East Asia is the main evidence; the Africa column is corroborating evidence. All qualifications that follow are the boundaries of this claim, not a retraction of it. This section does not proceed from any single site, but examines the “modern human origins” narrative at the level of evidence, and proposes the LSED-R hypothesis: taking Luxi as the core phase-transition position (71–57 ka), dispersing outward in all directions after the MIS 4 glacial-maximum screening. This section adopts the LSED-D determination protocol: geochronology, habitat carrying capacity, population dynamics, and fossil morphological gradation series are confirmed as first-order hard constraints; genetic spectra and molecular clocks are second-order comparative evidence. The main evidence of this section lies in 3.9.1 (continuous morphological development of Chinese fossils) and 3.11 (physical-field dynamics demonstration); 3.8-1.6 (the Africa column) is corroborating evidence. LSED-R is a hypothesis; its legitimacy derives not from refuting anyone, but from logical self-consistency, testability, and falsifiability.