There are lots of tests for quantum mechanics, it’s probably the most rigorously tested theory in physics.
Some parts of quantum theories are inferred, but they’re inferred from data collected in reproducible tests. Also, any part of quantum theory that hasn’t been confirmed by experiment has scientists working to do just that. If something was untestable and thought to never be testable in the future, then it wouldn’t be considered science.
Some parts of quantum theories are inferred, but they’re inferred from data collected in reproducible tests. Also, any part of quantum theory that hasn’t been confirmed by experiment has scientists working to do just that. If something was untestable and thought to never be testable in the future, then it wouldn’t be considered science.