Dark energy and dark matter...are the current best explanations, it wouldn't surprise me if we come up with a better one (Not god did it)
I knew I'd upset someone with my list of non-beliefs.
Yes they are "explanations", but are they scientific? You have a hole between what your theory predicts and what you observe and you stuff the hole by giving it a name. We need more matter to explain this, a never observed kind of matter, so let us say it is invisible. Lets call it "dark matter". O blast, we still have big hole, we need more energy to explain this, never observed invisible energy. Lets call it dark energy.
Explanations not based on observation are not scientific. PERIOD. They are purely wishful thinking. It is no different from believers saying, When we can not explain it, it is the work of God. It is just a hole that is being stuffed by giving it a name. Once you accept that things exist that you can not observe, you are outside the roam of science.
Frankly if we would follow Popper we would have to question our theories. When theories do not comply with what we observe they are to be questioned. In reality scientist often do the same thing as theologians, they try to stuff the holes in their theory. Because it is their baby. The only difference is, new generations adopt new theories when someone comes along with a different new understanding that creates better explanations. But until then old generations are allowed to protect their theoretical framework with religious fever.
It really is wrong to say that dark matter and dark energy are the best explanations. An explanation that contains things that can not be observed is the worst explanation, as observation is the foundation of science. These really are the worst explanations. They challenge that we can observe reality in all its aspects. The scientific thing would be to say: We currently have no scientific explanations. We have some wild guesses, but that is all.
There is a difference with relativity theory of Einstein of which not all predicted phenomena were yet observed. Why? Because the common predicted phenomena were observed, just not all the uncommon ones. So on the basis of observation there was a strong base for confidence. Can you give me any phenomena that was predicted on the basis of dark matter and energy that was not known before? Otherwise this claim it is the best explanations is more of a religious belief.
Neither can you compare this with predicting unobserved planets in the Solar system as we did not not demand these planet were made of a different matter that could not be observed.
Conan Doyle made Sherlock Holmes say: "When you have eliminated the impossible, whatever remains, however improbable, must be the truth". I like my explanation of Fairies better. No need to invent new things, Fairies have been known for thousands of years. And no need to call them Dark fairies, Fairies have proven to be extremely difficult to observe. And Fairies demand less belief. They are playful. They like to fool us into believing things, and make a fool of us for believing them. Well you know how fairies are. Those who see how fairies operate are freed of all beliefs.