That is not a physically tenable position. There have been entire threads on FR debunking that hypothesis.
Anyhow, physics shows we live in a closed system and any thought to the contrary is alot of vain imagination.
It seems to me that that assertion redounds more to my position than to yours. I do not assume any "outside" to the universe. By introducing a tinkering creator, you have to.
Does we actually understand why the red shift exists? I remember talking to some physics grad students (I was a lowly math/physics undergraduate at the time) who said that no one really understood why there was a red shift, as opposed to the Doppler effect which clearly exists because there is a medium in which the waves are being produced, and against which the source moves. There is no medium for light, ie. no ether if you believe Michelson/Morley.