I'm curious to hear your take on Dark Energy in modern orthodoxy as it allegedly composes along with Dark Matter some 97% of the universe. Rapidly and continually accelerating matter out of nowhere imparting supernatural momentum.
If anything, the UA makes more sense if you insist on Newtonian dynamics -- as the flow imparting momentum is losing it resulting in aetheric eddification.
I figured that would come up. For people who may not be familiar,
dark energy is a repulsive force that some scientists (I know it sounds general to say "some scientists", but I live in a town where literally most of the population works for a laboratory and I hear things like this all the time around me) attribute to simple vacuum energy (which is energy exerted by space even in a perfect vacuum, proven to exist by laboratory experiments like the Casimir effect), whereas
dark matter is sort of a useless lump of matter that is invisible because it doesn't interact with things like conventional matter except that it displays a gravitational force. Dark matter has been evidenced in the collision of some galaxies and gravitational lensing, and I'll talk more about evidence if you guys want.
The current paradigm is that dark energy does not expand space in the intuitive sense - that is, it does not impart momentum and accelerate objects away from each other. Astronomers have observed that galaxies have been, on average, drifting away from each other continuously. But how is it possible, in a 3-dimensional world, to have all this separating in one part of the universe without galaxies bunching up somewhere else?
The answer that scientists have come up with is that space itself is expanding - the actual objects are not moving but rather the space between the objects is growing wider. The common analogy is like raisins being baked into bread - at first, the raisins are very close to each other. As the bread bakes and rises, the spaces between all the raisins grows larger and larger.
Dark energy shows up only in large enough spaces - intergalactic space devoid of large clumps of matter which hinder the expansive force of it. Gravitational attraction overcomes the expansive forces of dark energy in galaxies and solar systems.
The reason scientists have attributed dark energy to vacuum energy is because the spaces between galaxies in the universe have been accelerating in growth - that is, as the space grows more and more empty, the increasingly enlarging vacuum may exert more of its energy on space.
Whether this violates the law of conservation of energy is not certain - there may be a limit to vacuum/dark energy so space may stop accelerating, and increasing the distances between the distances between objects may not even require energy as the objects aren't being moved in the intuitive sense.