Thanks for remembering me.
Something is causing additional cohesion on the stars in the outer rims of galaxies.
If gravity causes the strange rotation of galaxies, then either there is more mass (dark matter) or gravity is a bit stronger at vast distances than predicted (MOND). Gravity is not the only force that acts over great distances, Electromagnetic forces can also.
Yes, but the electric universe theory does not agree with many data. If a theory does not reproduce data, well... Also, their supporters are now most on the conspiracy theory business than in science, at the moment.