Reality Check
Penultimate Amazing
Sorry, Haig, but this is more a demonstration of you being fooled by the crackpottery of the electric comet/EU/PU cranks.It's just like the gravity only calculations made on the force needed to stop spinning galaxies from flying apart. Gravity alone isn't strong enough so mainstream scientists needed to invent the mythical black holes, dark matter and dark energy to solve this puzzle. Electromagnetic forces are the main factor holding and driving the galaxies and universe and no other black arts are necessary.
This is just my understanding from looking into Electric Comets and Electric Universe/Plasma Cosmology theory.
There are multiple sources of evidence for dark matter, not just galaxy rotation curves.
There are multiple sources of evidence for dark energy, which does not include galaxy rotation curves!
Galaxy rotation curves are flat outside the galaxy center which violates Newtonian gravitation. Astronomers know about electromagnetism and know that these curves cannot be explained by electromagnetism. That leaves non-visible mass.
Black holes are a standard part of GR and there is good evidence that they exist.
Black holes are not used to explain galaxy rotation curves!
The "black arts" are the electric comet/EU/PC ignorance of basic science and the delusion the electricity/plasma does everything.
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