>>13680309Quantum mechanics, a system of theories that accurately predict what comes out of experiment having to do with small scale quantities, is absolutely not bullshit.
Quantum mechanics, the ontological theory that tells you what’s going on, is to this day confusing and not completely understood. Quantum information researchers are doing a more than bang up job in this area, both on applying what understanding we have to devices and even other parts of physics, and to studying quantum mechanics in general. Some of the results having to do with multipartite entanglement have given us lots of insight into quantum many body physics.