ED, Maths may yield absurdities like time travel or singularity, that does not mean that qualitative verbose argument can take place of maths. It is apparent from 300 odd posts that debunking Feynman proposition will not debunk GR. Debunking the distinct maths associated with GR GW will do. Q-reeus is asking others to find fault with his argument without pin pointing where the fault is in GW derivation. Go global sounds more like a business slogan. Go global, leave local makes no sense mathwmatically unless you define both the systems and establish that from global perspective transformation to local perspective will invalidate GR GW. He is not doing it. Q-reeus has kind of taken hostile approach towards any opposition, that will not serve his purpose. I will be the first man to cheer him if he can falsify GR because it will be very soon, but with admissible framework. His point is very simple, its understood, but it will remain in limbo unless he comes with proper maths. Opposition is not because people have not understood him, opposition is because he is not able make a formal mathematucally expressible statement. Take for example, your referred twin paradox, if you argue it taking refuge in words then it is there and a person can claim that SR is bad based on his argument, but put it on paper with maths and the paradox goes. So maths is crucial.