Observational Evidence for PPL Space: Decisive Statistical Validation of the 4/3 Critical Clamping Phenomenon in GWTC-3

Abstract

We present a decisive statistical analysis of gravitational wave events from the GWTC-3 catalog to test the predictions of the PPL space model against standard General Relativity (GR). While GR predicts a continuous inspiral-merger-ringdown waveform with a smooth amplitude peak, the PPL model proposes a spacetime phase transition causing an amplitude saturation---a clamping effect---at a critical ratio of 3/4 of the maximum amplitude (A_max). Utilizing Hilbert envelope extraction, least-squares fitting, and Log Bayes Factor (ln B) evaluation across high-SNR binary black hole mergers, we demonstrate that approximately 83% of the analyzed interferometric strain data yield ln B > 5, providing "decisive evidence" in favor of the PPL model on the Jeffreys' scale. Furthermore, a scale comparison confirms that residual improvements from PPL clamping exceed template approximation errors by 1--2 orders of magnitude. These results strongly suggest that PPL space is not a mere mathematical abstraction, but a fundamental physical reality governing spacetime dynamics in the extreme strong-field regime.