Thank you very much Simon for both the response and the welcoming. I already feel I understand it more clearly.
I think I have hard time to understand the force at Planck epoch. What is force after all when 'nothing' exist? does force precedes energy? what causes it to exist if not energy? I...
Hi
Bear with my possible ignorant. I am puzzled over this dilemma. If General Relativity states that gravity is the curvature of spacetime, that is, no spacetime no gravity, and the cause of curvature is matter (mass), it means that if no matter, there is no gravity. I understand that...