In a hypothetical universe where mass of matter constantly increases, will we observe that distances also constantly increase? This is not a new theory, I'm just asking what classic GM says about that. If we are in a galaxy with constantly increasing mass, measuring distances to other galaxies, we must see that those distances are constantly increasing. Because when mass grows it slows down clocks (according to GM) so light takes longer to arrive and it indicates distance increase. So we must see more red shift. On the other hand, gravitation blue shifts incoming light. Gravitation increase leads to even more blue shift. Will we see red shift or blue shift in such situation?