Chapter 64: Abstract Computation in the τ

Chapter 78 embedded computation in physics: a physical E₂ agent hosted on E₁ hardware inherits τ-admissibility . This chapter removes the physical substrate entirely. The E₃ diagrammatic sector

hosts abstract Turing machines as τ-native diagrams, without passing through ZFC. The chapter defines the τ-native abstract TM (III.D78), proves the Universal Admissibility Theorem (III.T53), and diagnoses ZFC’s P vs NP openness as an artifact of actual infinity (III.R43).