Science theories are different than regular theories.
Yes, in that science theories can (in the vast majority of cases) be proven or disproven.
The stuff we can't prove - well, we might be able to prove or disprove in the future, once our science has advanced some more.
But they never are proven. If they were, they would no longer be theories of any kind. They would be laws or facts.
Yeah, they are proven, of course they are. You can't say no science is ever proven! I don't know whether you are typing that on a phone or a laptop or whatever, but there is a hell of a lot of proven science that built that device. You really think it's all guesswork?
Here's a cell phone. It wasn't created just by someone saying I'll get some green stuff and put some silver stuff on it.
https://i5.walmartimages.com/asr/750b8d8b-4375-40d6-8d31-6f64446b288a_1.b6642decb416e5fcc8044da82c7f0ed4.jpeg?odnWidth=450&odnHeight=450&odnBg=ffffff
But you are proving that you can't read, or can't think about what you read properly. I certainly didn't say that no science is ever proven.
I was talking about theories being proven. Just because there is engineering that works, doesn't mean that any scientific theories that are associated with the engineering, are associated exactly as the theories say. Most of the time engineers have to tweak the theories in their engineering, or the simply use the theories to give them ideas about how to engineer something. Almost never does a theory fit the engineering exactly.