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Old October 25th 17, 06:58 PM posted to sci.astro
Pentcho Valev
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Default LIGO Fakes Deliver Deathblow to LIGO Conspiracy, Not to Alternative Theories

LIGO conspirators and silly Einsteinians are triumphing:

Ethan Siegel: "Merging Neutron Stars Deliver Deathblow To Dark Matter And Dark Energy Alternatives. [...] In Einstein's theory, the speed of gravity equals the speed of light, exactly, and at all times. But in many alternatives, that assumption gets tweaked. [...] But the fact that gamma rays and gravitational waves from the merging neutron star event GW170817 arrived within 1.7 seconds of one another means that the speed of gravity must equal the speed of light to better than 1 part in 10^15. As a result, a huge slew of alternatives to standard General Relativity with standard dark energy are ruled out. [...] The fact that the speed of light and the speed of gravity are equal to such high precision means that all theories that have this type of modification are highly constrained, and that most such models are largely ruled out. For dark matter, attempts to modify gravity get even worse.. [...] Modified gravity isn't dead yet, but many of its greatest hopes have just been dashed. Einstein, however, with his theory in its original, unmodified form, still survives." https://www.forbes.com/sites/startsw...-alternatives/

The triumph is premature. LIGO's "finding" that the speed of gravitational waves equals the speed of light delivers a deathblow to LIGO conspiracy, not to alternative theories. According to Arthur Eddington, Einstein's relativity provides no justification for assuming that gravitational waves travel at the speed of light:

Arthur Eddington: "The statement that in the relativity theory gravitational waves are propagated with the speed of light has, I believe, been based entirely upon the foregoing investigation; but it will be seen that it is only true in a very conventional sense. If coordinates are chosen so as to satisfy a certain condition which has no very clear geometrical importance, the speed is that of light; if the coordinates are slightly different the speed is altogether different from that of light. The result stands or falls by the choice of coordinates and, so far as can be judged, the coordinates here used were purposely introduced in order to obtain the simplification which results from representing the propagation as occurring with the speed of light. The argument thus follows a vicious circle." The Mathematical Theory of Relativity, pp. 130-131 https://www.amazon.com/Mathematical-.../dp/0521091659

So what is the probability that the gravitational waves (if they exist) travel exactly at the speed of light? Answer: Zero.

What is the probability that the gravitational waves (if they exist) travel at a speed different from the speed of light? Answer: Unity.

That is, if LIGO conspirators had said that the speed of the gravitational waves was different from the speed of light, that would have sounded realistic. The claim that the gravitational waves travel exactly at the speed of light unequivocally proves that LIGO conspirators have fabricated their results.

Pentcho Valev