Neither has the “god of the gaps” argument.
May as well try to explain the Universe sticking together with Angels or “the Force” instead of proposing a natural cause in “dark matter”.
Dark matter is a unsupported hypothesis - but it is science.
Angels holding it together or “the Force” are not science - and they never will be.
That isn't arbitrary or narrow - it is what it is.
This has nothing to do with a "God of the gaps" agrument. If you claim it does please identify the "scientific" boundries of the "gap" you claim God is being plugged into.
No it's not. It's merely unsupported speculation as to why the traditional cosmologic constucts don't comply with the observable data. I have as much data to support to the speculation there is an invisible Angel directing the behavior of celestial bodies as science does that "dark matter" performs this phenomenon.