I must admit I'm a bit torn between Grant & Occams. I can see both sides of their arguments and i think they are both correct dependent on your perspective! the point i was trying to make earlier is that space & time are interwoven as a continuum and are relative to each other, but they can be still considered separate entities when dealing with the expansion of space relative to us as the observers. I.e we can measure space expansion due to the relative motion of the galaxies but we have nothing relative to measure time expansion against