There is something called the Wigner's Friend Paradox I have only just learned about. Basically you have two people, Wigner and Wigner's friend, and a photon that can be in one of two quantum states. Wigner's friend makes a measurement in a lab to determine the state of the photon while Wigner himself is in a different lab. Once Wigner's friend makes the measurement the photon will assume one of the two possible states. But from Wigner's standpoint the photon is still in a state of superposition and remains that way until Wigner's friend calls him and tells the result of his observation. So when did the photon settle into a definite state, when Wigner's friend made his observation or when Wigner learned the results of the observation? Neither can be regarded as a privileged observer so both of their points of view must be equally valid. Anyway, the experiment has just now been performed and, yes, quantum mechanics is right again. Kinda blows my mind. A quantum experiment suggests there’s no such thing as objective reality Wigner's friend - Wikipedia
Isn't it paradoxical to claim there is no Objective Reality by testing it with a controlled experiment? I feel like if scientists cannot figure out a way to reconcile QM with Relativity and the Macroscopic World in general soonish, they should at least look to start using different language for some of these descriptions.
Isn't it paradoxically that a particle can be in 2 place's at once to begin with Relativity also has not reconciled why Newtonian gravity works