How is theory proven?

Answer 1

No scientific theory can be 100% proven. some are simply more accurate than others. For example, the two most important theories in modern physics today are Einstein's theory of general relativity and quantum mechanics. Both are very good at explaining the known universe in different areas, but when you try to combine them (which we should be able to do if both are 100% correct) they break down and give ridiculous nonsensical answers. This is what physicists are currently trying to do. create one universal theory that explains all. but so far, thousands of years of science and we still haven't created a single theory that can be proven. So there really isn't one way to "prove" a theory. If a theory is good enough, the scientific community will accept it as fact, but so far all our theories have needed to be revised one way or another eventually. In fact, general relativity is just a beefy revision of basic relativity in order to include gravity. Maybe someday we can prove a theory, but we will have to know absolutely everything in not only our known universe, but any other dimensions as well.