The forum discussion centers on the speed of gravity, affirming that it travels at the speed of light, as proposed by Einstein. Participants reference Clifford Will's paper in the Astrophysical Journal, which critiques the measurement of gravity's speed by the VLBA, asserting that the observed deflection is significantly smaller than predicted. The conversation also touches on the implications of gravity's speed on the topology of the universe and the nature of gravitational waves, with mentions of quantum gravity and Loop Quantum Gravity (LQG) as potential avenues for further exploration.
PREREQUISITESPhysicists, astrophysicists, and students of theoretical physics interested in gravitational theories, the nature of spacetime, and the latest research in quantum gravity.