Tink > There is no evidence that physical constants differ anywhere in space time and Occom's razor suggests that until a theory that assumes such can also provide a better match to measurements of the observable universe that the constants are ... constant.
Correct. But there are several theories which try to explain stuff not well explained by the standard theory. So far they have more problems though than the standard model, so are less likely to pull ahead. Agree.
Tink > [let's not bring up Dark Matter and Dark Energy.
Hey, not fair. after all, why to talk only about 4% of the known universe and ignore 96% of the current model.
BTW, I have an idea why the Universe must keep on expanding, (based on current theories) but I need to run it by some physicists to see if it's a complete amateur nonsense. (So far I've asked one, but she claimed not to know, -perhaps to stay my friend :-)