Quantum metametaphysics

Say that metaphysical indeterminacy occurs just when there is a fact such neither it nor its negation obtains. The aim of this work to shed light on the issue whether orthodox quantum mechanics provides any evidence by discussing logical, semantic, and broadly methodological presuppositions debate. I argue dispute amounts verbal disagreement between classical logicians, given Eli Hirsch’s account substantivity; but need not be so if Ted Sider’s naturalness-based substantivity adopted instead. Given latter approach, can anything said in order tip balance either way? Some prima facie reasonable constraints naturalness entail classicist right, world therefore determinate. Nevertheless, are reasons for weakening those constraints, effect remains very much open. Finally, discuss alternative accounts indeterminacy, they unsuitable framing