> and offer no support for practically any proposal which reduces to (or produces) General Relativity in the centres of active galaxies Too late to edit, but t

> and offer no support for practically any proposal which reduces to (or produces) General Relativity in the centres of active galaxies Too late to edit, but this should be "and offers no support ... which fails to reduce to (or produce) General Relativity ...", in case that wasn't clear from context. General Relativity (perhaps frustratingly) continues to survive all confrontations with evidence.