If you wanted to talk to someone about Quantum Mechanics you can start with black body radiation, the photoelectric effect and wave particle duality and the exp

If you wanted to talk to someone about Quantum Mechanics you can start with black body radiation, the photoelectric effect and wave particle duality and the experiments that lead to these discoveries. Then let's move on to precision tests of quantum electrodynamics done with low-energy atomic physics experiments, high-energy collider experiments, and condensed matter systems leading to the empirical evidence. To me saying Quantum Mechanics could be BS is like someone saying evolution is BS because, well it's just a theory. Let's ignore all the facts that have been repeatedly confirmed through observation and experiment and pretend that "scientific theory" means the same thing as saying "it's just a theory".