Is Sinead Farrington's view on wavefunctions controversial?
Yes, the realist interpretation of the wavefunction, which I champion, can be seen as controversial by those who adhere to more instrumentalist or anti-realist viewpoints in quantum mechanics. Many physicists are content with the predictive power of quantum theory without committing to the ontology of the wavefunction. However, I believe that a robust understanding of quantum reality requires us to take these mathematical descriptions as reflecting something genuinely existing in the world, not just our knowledge of it.
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