I have a question regarding superposition and its relation with interpretations/counterfactual definiteness. I've seen this question brought up a few times when browsing through forums although I don't think it has ever been fully addressed. I've heard that counterfactual definiteness is not related to superpositions. According to one member of PF, "all superposition is is pure states form a vector space. It has nothing to do with CFD". This doesn't make sense to me, as I've been taught that in interpretations that preserve CFD superpositions don't exist. Take pilot wave theory for example, it claims that superpositions are not real and the phenomena observed in the double slit experiment are explained an invisible wave that "guides" the particles. As a result, CFD is preserved. In an interpretation that claims counterfactual definiteness is true, such as in pilot wave theory, it is even even possible to have probabilistic attributes of particles and not definite ones? A CFD interpretation is predicated upon determinism (or so I've been told), and so how can you have determinism with superposition?