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Appendix A.22 · BLACK HOLES · Boundary Field

Horizon

The physical archetype for a question already in the spine: what happens to information at a boundary? Schwarzschild identities are textbook GR. The ideal Casimir pressure is textbook QED for two plates. The operator B on a Twin is a structural hypothesis. Dark matter as “subsurface” stays a registered hypothesis.

Analogy is labeled analogy. Nothing here replaces general relativity or reports a telescope measurement.

Schwarzschild · r / r_sestablished
r_s1.5 r_sISCO 3 r_s
  1. Mathematicalheld
  2. Computationalheld
  3. Benchmarkheld
  4. Predictiveopen
  5. Experimentalopen

Schwarzschild geometry

A.22.2
rs=2GMc2r_s=\frac{2GM}{c^2}
r_s1.5 r_sISCO 3 r_s

  • r_s km

    2.953

  • photon km

    4.430

  • ISCO km

    8.860

  • photon / r_s

    1.500

In units of r_s the diagram is mass-independent. Changing M rescales the physical kilometre numbers, not the causal structure. Established vacuum GR.