Causal Margin

The Causal Margin is the ratio of the fastest group velocity in a system to the computational lightspeed limit, which must stay at or below 1 for causal consistency. The book uses it in the Zinf-limit universe, where the speed of light acts as a computational bound derived from BPT propagation dynamics. A margin below 1 means information propagates slower than that bound; the current definition says C ≤ 1 ensures causal consistency. Among the Chapter 8.8 testable predictions, the Causal Margin converges toward 1 once the fourth Data Nova stage (DN4) is reached, so that stabilized Zinf systems approach light-speed information propagation; this is to be measured by group velocity analysis. The same predictions include Floquet sideband peaks at ω* ± p × ω⥂ and faster emergence in minimal configurations, with progression rate ∝ 1/(N⥥)². The statement is C(t) = max(v_g/𝒞→), with C ≤ 1, where C(t) is the Causal Margin, v_g the group velocity and 𝒞→ the computational lightspeed bound; C is a ratio of velocities and so dimensionless. It connects to the Zinf-Limit Universe, Four-Nova Pathway, Floquet Sidebands, Nyquist Constraint and Causal Cone Modification.