We present an observation-driven phenomenological account of black hole behavior within the Suppression framework. This work focuses exclusively on measurable effects—horizon-scale signatures, accretion cutoffs, jets, mergers, gravitational waves, time dilation, and information retention—while remaining agnostic about detailed formation microphysics. Minimal equations are included only to specify how observables are estimated or bounded, with full derivations deferred to subsequent dedicated papers.In this framework, suppression is an emergent consequence of energy resisting compression. The black hole interior is not assumed to be static or frozen; instead, it may sustain ongoing internal dynamics. However, once freeze-out boundaries form, the interior becomes causally disconnected from exterior observables. Interior constituents experience vanishing rates of change due to suppression, resulting in effectively non-interacting behavior and preventing any internal dynamics from coupling outward.All observable phenomena arise from exterior energy redistribution and dynamically evolving boundaries driven by accretion, without reliance on interior processes. Gravitational waves are interpreted as traveling substrate gradients generated by non-uniform collapse and merger-driven reconfiguration, propagating at speed c and inducing tiny accelerations in matter. Ringing is treated as a transient relaxation during formation and merger, terminating at freeze-out rather than as sustained oscillations of an interior object. Jets and luminosity limits follow from energy redirection imposed by suppression, without invoking interior engines or auxiliary mechanisms.A systematic comparison with standard expectations highlights clear, falsifiable differences while avoiding parameter fitting, mode decompositions, or geometric assumptions. This paper serves as a master phenomenology reference, establishing a clean separation between observable constraints and interior dynamics rendered non-interacting by suppression.
Parndhaman Muthuswamy (Sat,) studied this question.