Posted: Mar 01, 2017 7:15 am
newolder wrote:General Relativity in 4 dimensions (“Einsteinian theory”) predicts its own failure at vanishingly short range - it rules itself out. Gravitons are predictions of various quantum theories of gravity designed to fix this failure. The current status of likely gravitons: Coulomb charge free, QCD colorless, massless, spin 2 quanta of the gravitational field; hitherto unobserved in nature.
But just because GR in four dimensions falls short, that doesn't automatically validate gravitons, especially as nothing predicts their existence (e.g. the standard model). Also, gravitons do sound much to be a fudge factor...