Based on what experimentation or scientific evidence.
I suspect theories are a dime a dozen. Those which include supporting evidence are usually seen as having more value.
Hello.
I'd like to comment here on science and its relationship to a Hypothetical creator God.
The idea of this existence being "created" by some unimaginably "powerful" creator God is a serious hypothesis proposed as an explanation of certain scientific conundrums which have recently come to light. The concept of God or Gods of course is ancient and in theory mainly faith based. However it has evolved along side science as new scientific discoveries about our universe have come to light into a scientifically plausible explanation for some of these discoveries.
Discoveries like; the universe and time with it had a beginning and ours is not a steady state universe, the increasing discoveries of just how complex life actually is; discoveries concerning the unanswered mysteries of currently proposed theories of evolution; the continuing additional discoveries of just how inconceivably improbably fine tuned our universe is for our life and even itself to exist the way it is and the perplexing data that the quantum theory is presenting to us. Like the seeming need for observational data to exist in order for the field to collapse into reality. Are all unobserved objects in super positional states until observed? Einstein for one thought it ridiculous to believe the moon would cease to exist if no one was observing it as quantum mechanics seemed to indicate. But quantum mechanics has notions that it would indeed cease to exist except in a super positional state of probabilities.
So what keeps the universe uniform with everyone's experience? One proposal is there is never something not "observing" everything at once. That something? God of course. Its a theory.
Keep in mind that some proposals such as string theory or the multiverse conception of reality have themselves no experimental evidence to date to support them. They are pure conceptions of the mind's attempt to answer some of life's perplexing phenomena. Yet many people believe they are scientific in some sense of the word.
Also keep in mind that science is a tool and is only as good as the creatures that use it in their ability to understand what it is telling them about the universe. Certain aspects of quantum mechanics come to mind as scientifically giving us rich data about the universe but many times in ways the human mind is not quite equipped to comprehend.
We don't know how or why many of these things do what they do but we march on making things with our discoveries like monkeys rubbing sticks together to make fire without understanding friction or fire. Incidentally unbeknownst to a lot of people friction is still scientifically a mystery believe it or not.
And ironically, unbeknownst to a lot of people...there is NO proof to date of the inviolability of physical laws such as newtons laws of thermodynamics. So how did they become laws? Simple observation of the data returned by many many experiments.
That is not proof of necessity. That is probabilistic analysis. I thought that to be interesting at least.