As an aside, this is a very common misinterpretation of Einstein's comments. After its discovery, there was a major disagreement about how to interpret quantum

As an aside, this is a very common misinterpretation of Einstein's comments. After its discovery, there was a major disagreement about how to interpret quantum mechanics. Bohr, among others, advocated for a view that quantum mechanics was a fundamentally probabilistic phenomena with no direct causal explanation. Einstein vehemently disagreed with this, and felt that the universe was absolutely causal in nature. And the only reason that an explanation that rejected determinism/causality fit so well was due to a lack of research or knowledge. That's the context where many of his most famous comments come from. He was not skeptical of his own results or views, but of others' interpretations. It's the same for "Spooky action at a distance." Einstein had a deeply held belief that the universe was causal and logical, which he held to his death. Incidentally, the probabilistic explanation, "The Copenhagen Interpretation", ultimately 'won.' It's one of the best examples of why equating science with consensus is such an odd view. The greatest physicist of all time held a fringe view on the very topic that he was 'the father' of. His arguing endlessly in support of his view, contrary to the consensus, only made for better science for all. To say nothing of some of the most amazing debates in history, with Einstein and Bohr having numerous live public debates over many years, constantly aiming to one-up each other.