 Van Fraassen called his proposal “modal” because it naturally connects to a modal logic of quantum propositions. Indeed, the dynamical state in general only tells us what is possible and specifies probabilities for the various possibilities. According to van Fraassen, this modal and probabilistic aspect is fundamental to quantum mechanics and should not be viewed as arising from an incompleteness of the description (see Bueno 2014 for the relation between this and van Fraassen’s constructive empiricism).