Originally Posted by ManInTheMirror

That's actually a very good question. I suppose I could have started the conversation anywhere. I guess in the back of my mind I suspected that when it came to identifying the actual "cause" of the expansion of "space" (whatever that is), it was going to sound something like:

It is profoundly impossible for the ad hoc "invisible cheeseburger force" to not exist, if we assume the validity of the expansion of space for the simple reason that "invisible cheeseburger forces" are, by definition, the cause of that effect.