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I've read theories (as per "gravitational wave" theory) that gravity as a force propagates at "c", and yet I've also read theories that gravity is far much faster than "c". Has anyone any ideas on this topic?

Quadrupolar Gravity waves are a stupid idea.

Quote from: Mad AetheristQuadrupolar Gravity waves are a stupid idea.I am sure that you are familiar with electromagnetic radiation, which comes from a dipole source.- Positive and negative charges attract each other, forming a dipole- These can be produced by accelerating + and - charges orbiting each other- every cycle of the + & - charges produces a positive excursion and a negative excursion of the electromagnetic wave. - So the frequency in Hertz is equal to the orbital frequency.The major difference with gravitational waves is that mass only comes in positives (as far as we know)- And two positive masses attract each other- These can be produced by two positive masses orbiting each other (like two neutron stars).The way I think of it is with two neutron stars with identical mass and diameter, orbiting each other - they are effectively identical and indistinguishable- So you cannot distinguish A approaching you from B approaching you- So an identical gravitational wave must be produced when A is approaching you as when B is approaching you- So the frequency in Hertz is equal to twice the orbital frequency.This is why electromagnetic radiation has a dipole source, and gravitational waves has a quadrupole source.

Did anyone read this article: https://www.newscientist.com/article/mg24032022-600-exclusive-grave-doubts-over-ligos-discovery-of-gravitational-waves/