One of the reasons scientists have been perplexed by dark energy is how much faster a galaxy is spinning despite there not being enough mass to create that speed. I'm considering the possibility that the zero point energy is generating a weak force against all forms of matter.

This causes the expansion of the universe to accelerate. But it also pushes in on a galaxy from all sides greater than it does between the objects within a given galaxy. All objects in orbit with the galactic center are being pushed/pulled in on by gravity. We know this.

However the outside force, to which we cannot measure at the scales of our levels is still felt by the body of galactic scales. This forces the galaxy material to orbit closer to its center than momentum alone allows. Any object that is orbiting at the same velocity but closer than it would normally will go faster and complete its orbital cycle at a higher rate than what gravity alone accounts for.

This is my theory. The descriptive image that comes to mind is boiling water. Causing things to both clump together in the medium. Even though the temperature is the same through out the sum material. However. The more of the boiling medium there is. The more pressure between such clumps over all.

Please submit your thoughts and if you can create the math to calculate such differences and forces. Do so! I have absolutely no serious math skills. So naturally I cant get this theory off the ground on my own.