I would not say they are solidly proven. Remember a theory is just the best guess based on the available evidence and measuring and like theories in the past can be proven wrong and discarded. There is also evidence or rather theorising that says that black holes, dark matter, the big bang etc are wrong.
For black holes, we have actual observations. For dark matter, the alternatives (such as MOND) have been disproved. And for the Big Bang, it is a fact that the universe is expanding from hot and dense enough for fusion reactions to occur.
Now, we may run into a terminology problem. For example, when atoms were first introduced, they were envisioned as indivisible pieces of matter. Dalton used this concept to explain much of known chemistry. But, later, we found out that the chemical atoms were, in fact, made other things: proton, neutrons, and electrons.
So do atoms exist? If your definition includes the concept of indivisibility, then perhaps not. But that would be a perverse use of language at this point.
In the same way, black holes were originally envisioned as things where nothing could escape, not even light. Today, it is recognized as possible that Hawking radiation makes that definition obsolete. But, we can still ask if the objects we see are reasonably well described (to a certain level of approximation) by the equations used to predict black holes. Of that, there is no question.
Similarly, some people, when talking about the Big Bang, imagine all of space coming out of nothing. That is NOT what most scientists mean when they talk about the Big Bang. In fact, all that is usually meant is that the universe is expanding and was once hot and dense enough for fusion reactions to occur. What happened before that is a matter of speculation. It is further a matter of speculation whether there is even *time* before the start of the expansion of the universe.
So, the Big Bang is demonstrated at least back to about a microsecond into the current expansion.
If geocentrism and phlogston were regarded as correct based on observational evidence and then later shoown to be wrong doesnt that show that theories based on observation are at best a temporary guess at what is going on and more than likely incorrect in the greater scheme of things. That would make the theories of today the same and when new discoveries come along this will change the status of what was thought to be correct. The problem I find is that some believe in these theories as though they are the complete and final answer becuase they fit with the observations so well rather than being verifiable.
Nope, I do NOT think these theories are the complete and final answers. As science progresses, we get better and better *approximations* to the truth. ALL measurements have error bars: they are never perfectly accurate. So it is *always* possible that adding another 3 decimal places will show the old approximation no longer works. But that isn't reason to throw away the old approximation.
So, for example, Newtonian mechanics is 'wrong'. it has been 'replaced' by much more accurate descriptions (relativity and quantum mechanics). But, for most things that happen on a human scale, Newtonian mechanics gives a good enough approximation (several decimal places) to be 'good enough' to use to design cars, build buildings, and send probes to other planets.
SO, even though Newtonian mechanics is 'wrong' it is still a very, very good approximation in many situations and can be used to obtain reliable conclusions.
Geocentrism and phlogiston were also approximations, but not nearly as good as those from later discoveries.
What does that mean for future theories?
Well, in part it means that all those things that we have been able to test are still going to work. No future theory will completely do away with an expanding universe with a hot dense phase. No future theory will negate the probabilistic aspects of quantum mechanics. No future theory will be able to get around the fact that biological species change over geological time (evolution). The details may very well change. In fact, they probably will. But that doesn't negate the conclusions we have reached so far.
That wpould make many of the current hypothesis and even theories not scientific as they cannot be tested or verified such as multiverses and string theory.
String theory isn't *currently* testable in detail, but there are observational consequences that may well be testable with the LHC. If those don't show up, string theory is in trouble (and it might already be so). Multiverse theories are not things in themselves, but happen in a broader context of attempting to resolve the tension between general relativity and quantum mechanics (both of which are well supported). The underlying theories that predict multiverses are testable through observations in *this* universe.
My point wasnt that God or an intelligent agent can be verified directly by scientific testing but that there is indirect evidence that can be logically reasoned just as other ideas in science are reasoned with indirect evidence and put forward as an alternative.
Those alternatives are, in fact, testable. Dark matter, for example, has consequences outside of just velocity curves for galaxies. The descriptions of dark matter give very precise predictions for many observations (and those have been verified).
Simply having indirect evidence, however, with no prospect *even in theory* for testing, makes the God hypothesis not a scientific theory.
I have given some of the support for this in my previous posts. But God or an intelligent agent will never be directly verified scientifically as we would have to be in the realm of God which is not of this reality to be even able to see God. That is why people say the evidence has to be indirect with things such as creation ie the fine tuning argument.
OK, what is a measurement that would distinguish a God-created universe from one that isn't? Be clear. It need not be one we can do today, or even in the next century. But give one test that would distinguish the two. Without that, the God hypothesis has no explanatory power at all.
It would be the same as saying what tests can be made to prove a multiverse or a hologram world yet these are valid ideas put forward by science to account for what we see. Like I said it can only ever by presented as indirect support and I have put forward some supports in my other posts.
First these are acknowledged as speculation and in need of testing. Because of the difficulty of testing, they are, in fact, looked at as speculation and highly provisional. But they also *do* have specific tests that can be used to verify or refute them, a least in theory. What does *your* viewpoint have?