Question

no message can be delivered at speeds greater than or equal to the speed of light in a perfect vacuum. That leads one to believe that this hypothetical binary system is emitting gravitational radiation. The energy associated with this radiation has to come from somewhere, since there is no such thing as a free lunch when it comes to mass-energy considerations. A very likely candidate for that energy source is the kinetic energy of the binary system. Its kinetic energy gradually decreases, causing the black holes to approach each other. This, in turn, gradually decreases the rotational per