Q&A: Quantum Mechanics and Causality
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Quantum Mechanics and Causality
Question
According to some interpretations of quantum theory, there are quantum events that occur without a cause. In other words, it is possible that the principle of causality is not an all-encompassing principle. If so, it would seem that there is also a possibility that the event of the Big Bang occurred without a cause. How does the cosmological argument deal with this claim?
Answer
I explained this in the notebooks and in The First Existent. Quantum theory itself is also a cause. Nothing comes into being out of a mere vacuum without a cause. It is possible only if that vacuum has a quantum nature. Beyond that, such quantum formations cancel each other out, and we do not see their effects in the macroscopic world.
So it may be that there is an unresolvable question here—perhaps there was a vacuum with a quantum nature?