Welcome to the Spectral Gravitation Framework (SGF)—a complete, testable alternative to standard cosmology. Start here to find the right entry point: technical papers, bridge essay, or science communication essays. SGF reimagines spacetime as density‑responsive, replaces singularities with spectral knots, and invites you to test its predictions.

SGF Paper 4 details the empirical predictions and adversarial‑audit protocol of the Spectral Gravitation Framework. It distinguishes fitted parameters from genuine forecasts, specifies falsification conditions for voids, black holes, GRBs, and gravitational waves, and formalizes how challenges are logged and resolved.