If true, then basically you can throw the entire Relativity Theory out of the window and start researching about Tachyons.
Actually black matter and black energy apologists have already said that light speed was not the true speed limitation for any particle, as black energy is predicted to be what stabilizes the central core of the milky way galaxy, and that can only be achieved if there's some type of force acting at faster speeds/energy output than the light-speed "suction" gravity well from the black holes.
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