University of Cambridge,Trinity College, CB2 1TQ, Cambridge, UK.
Stud Hist Philos Sci. 2024 Oct;107:11-24. doi: 10.1016/j.shpsa.2024.06.005. Epub 2024 Aug 6.
David Wallace's 'Dennett's Criterion' plays a key part in establishing realist claims about the existence of a multiverse emerging from the mathematical formalism of quantum physics, even after decoherence is fully appreciated. Although the philosophical preconditions of this criterion are not neutral, they are rarely explicitly addressed conceptually. I tease apart three: (I) a rejection of conceptual bridge laws even in cases of inhomogeneous reduction; (II) a reliance on the pragmatic notion of usefulness to highlight quasi-classical patterns, as seen in a decoherence basis, over others; and (III) a structural realist or 'functional realist' point of view that leads to individuating those patterns as real macroscopic objects at the coarse-grained level, as they are seen from the Classical Stance (analogous to Dennett's Intentional Stance). I conclude that the justification of Dennett's Criterion will be intimately tied up with the fate of strong forms of naturalism, and in particular that Wallacian quantum mechanics is a key case study for concretely evaluating his 'math-first' structural realism (Wallace 2022).
大卫·华莱士的“丹尼特标准”在确立关于多元宇宙存在的现实主义主张方面发挥了关键作用，即使在完全理解退相干之后也是如此。尽管该标准的哲学前提并非中立，但它们很少在概念上得到明确阐述。我将其分为三个方面：（一）拒绝概念桥梁法则，即使在非均匀还原的情况下也是如此；（二）依赖于实用性的概念，以突出退相干基础上的准经典模式，而不是其他模式；（三）结构现实主义或“功能现实主义”观点，导致将这些模式个体化，作为从经典立场（类似于丹尼特的意向立场）看到的粗粒级别的真实宏观对象。我得出结论，丹尼特标准的辩护将与强形式自然主义的命运密切相关，特别是华莱士量子力学是具体评估他的“数学优先”结构现实主义的关键案例研究（华莱士 2022）。
