There wasn't any direct observation, only interpretation of the data from vastly complex instruments which has been made according to some set of beliefs (like

There wasn't any direct observation, only interpretation of the data from vastly complex instruments which has been made according to some set of beliefs (like Egyptian pyramids). That's the point - there were no direct observation. The "proof" of existence of, say, photons is that green thing outside your window. The proof of correctness of the atomic theory you could see in the mirror. The proof of existence of antimatter are some petabytes of data from some man-made tool.