Could this new numerical scheme deliver cleaner gravitational wave signals?

Simulating gravitational waves cleanly requires numerical grids that reach all the way to infinite distance — but coordinate singularities and boundary artifacts make that brutally hard. This work builds a mathematically stable 3D finite-difference framework in spherical coordinates that handles the origin, the poles, and literal infinity simultaneously, without the gauge ambiguities that plague current methods. If extended to full Einstein gravity, it could produce gravitational waveforms free of the systematic errors that limit today's detectors.