Dark matter and dark energy question.
The bulk of our investigation involves an expensive search for Weakly interacting Massive Particles aka WIMPS. This would be cold dark matter. Hot dark matter would be black holes, neutron stars, dust, gas, etc.
I propose a third option.
Dimensional stresses similar to gravity give galaxies a surface tension like a drop of rain on the windshield of a moving car. All the drops spread apart, the wind is like time. So even though all the drops (galaxies) move apart they maintain their “dropness” despite the forces on it, just as galaxies should fly apart due to spin. It’s like gravity on the intergalactic scale repels enough to keep galaxies in a stable gravitational surface tension bubble.
I wonder about this as I listen to physics people talking at the Perimeter Institute in Canada.
That’s my hypothesis, let me know what you think or say something interesting and/or funny.