The question of whether Everettian quantum mechanics (EQM) justifies the existence of metaphysical indeterminacy has recently come to the fore. Metaphysical indeterminacy has been argued to emerge from three sources: coherent superpositions, the indefinite number of branches in the quantum multiverse and the nature of these branches. This paper reviews the evidence and concludes that those arguments don’t rely on EQM alone and rest on metaphysical auxiliary assumptions that transcend the physics of EQM. We show how EQM can be ontologically interpreted without positing metaphysical indeterminacy by adopting a deflationary attitude towards branches. Two ways of developing the deflationary view are then proposed: one where branches are eliminated, and another where they are reduced to the universal quantum state.

埃弗里特量子力学（EQM）是否证明形而上学不确定性的存在的问题最近引起了人们的关注。人们认为形而上学的不确定性来自三个来源：相干叠加、量子多元宇宙中无限数量的分支以及这些分支的性质。本文回顾了证据并得出结论，这些论点不仅仅依赖于 EQM，而是依赖于超越 EQM 物理学的形而上学辅助假设。我们展示了如何通过对分支采取紧缩态度来对 EQM 进行本体论解释，而无需提出形而上学的不确定性。然后提出了两种发展紧缩观点的方法：一种是消除分支，另一种是将分支简化为通用量子态。