FIRST M87 EVENT HORIZON TELESCOPE RESULTS I AND THE THEORY OF OBJECTIVITY

Abstract

This article develops an expanded critical–propositional analysis of the Event Horizon Telescope Collaboration’s 2019 study, First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole, in systematic dialogue with the Theory of Objectivity (TO), developed by Vidamor Cabannas and Denivaldo Silva. The Event Horizon Telescope (EHT) study reported the first horizon-scale reconstruction of the compact radio source M87*, revealing an asymmetric emission ring with a diameter of approximately 42 ± 3 microarcseconds surrounding a central brightness depression and yielding a black-hole mass estimate of approximately (6.5±0.7)×109M⊙. The observed morphology is compatible with gravitational lensing, photon capture, relativistic plasma motion, and the shadow expected around a Kerr black hole (Event Horizon Telescope Collaboration, 2019a,e,f). The analysis adopts a strict three-level epistemological distinction between: (1) empirical confirmation of physical phenomena; (2) structural compatibility between such phenomena and categories of the Theory of Objectivity; and (3) specific empirical confirmation capable of discriminating TO-derived hypotheses from competing physical theories. This distinction is required because the TO assigns modal necessity to its Seven Absolute Truths, whereas EHT observations belong to contingent empirical physics (Cabannas and Silva, 2026a,b). The strongest dialogue concerns VA4, the axiom of boundary or interface. A black- hole event horizon is a causal boundary whose presence is not observed as a luminous material surface but whose physical consequences reorganize the trajectories of radiation and generate measurable effects. A second major dialogue concerns VA5 and the TO’s emphasis on relational or triangular observation. Very-long-baseline interferometry does not produce the M87* image through a single local photograph. Spatially distributed stations coherently record electromagnetic radiation, and information about the source emerges through correlations among those records. VA6 finds a broad correspondence in the compositional character of the phe- nomenon: gravitation, plasma, electromagnetic fields, relativistic motion, synchrotron emission, photon propagation, interferometric correlation, and computational recon- struction all participate in producing the observed image. VA7, interpreted within the TO as knowledge or information generated through atomic relations and equivalent to atomic radiation, encounters both a significant compatibility and an important tension. EHT radiation unquestionably carries recoverable information about the source, but the 1.3 mm emission is predominantly synchrotron radiation from relativistic charged particles in magnetic fields rather than merely radiation from discrete atomic transitions. The article further examines the TO’s phenomenic elements, Inducing Effects, convergence zones, cosmogonic theorem, cosmological Eras, and the possible relation between the near-circular M87* ring and The Perfect Sphere. It argues that plasma, magnetism, radiation, black holes, temperature, motion, and gravitation make M87* an exceptionally rich phenomenic interlocutor for the TO. Nevertheless, the EHT result does not directly confirm the TO cosmogonic theorem, the historical sequence of its cosmological Eras, or the modal necessity of its axioms. The central proposal is that M87* should be treated not as a retrospective “proof” of the Theory of Objectivity but as a prospective laboratory for its opera- tionalization. TO categories become experimentally discriminating only if concepts such as boundary, convergence, Inducing Effects, and information generate measurable predictions—for example, deviations in ring diameter, circularity, azimuthal asymmetry, polarization structure, temporal evolution, or relations among these observables relative to Kerr/GRMHD predictions. Thus, the EHT result occupies a high position in dialogue with the TO while simultaneously imposing a rigorous quantitative challenge: structural compatibility must be transformed into risky prediction if the TO is to move from philosophical consonance to discriminating physical testability. Keywords: Event Horizon Telescope; M87*; black-hole shadow; Theory of Objectivity; modal ontology; boundary; information; synchrotron radiation; plasma; convergence; strong gravity; VLBI; empirical testability.