Well after all that was how QM was invented back in the days as well (they had to find underlying explanations for the probabilistic experiment outcomes). But

Well after all that was how QM was invented back in the days as well (they had to find underlying explanations for the probabilistic experiment outcomes). But see the PBR theorem ( https://en.wikipedia.org/wiki/PBR_theorem https://en.wikipedia.org/wiki/PBR_theorem ) regarding the importance of the quantum state itself and its "physical content".