WARNIG: Contrafactual question
It is commonly known that Einstein was not fond of quantum mechanics -- formulated in the famous quote "God does not play dice with the universe".
This quote comes from the time when the Copenhagen interpretation of quantum mechanics was the dominant one, and one of the main point was the idea of wave functions collapse.
In the modern treatment of quantum mechanics, we don't really need wave function collapse, since we have the mechanism of decoherence. In this picture there in no real randomness, but randomness emerges due to the interplay of lots microscopic degrees of freedom.
Now for the question: If the ideas of decoherence would have been around a few decades earlier, is it possible that Einstein would have been won over of the quantum mechanics camp after all - given that the randomness he was so opposed of isn't really a problem.