Além da falseabilidade: a ciência normal em um multiverso. Pode isso, Arnaldo?

Beyond Falsifiability: Normal Science in a Multiverse

Sean M. Carroll

(Submitted on 15 Jan 2018)

Source/Fonte: YouTube

Cosmological models that invoke a multiverse - a collection of unobservable regions of space where conditions are very different from the region around us - are controversial, on the grounds that unobservable phenomena shouldn't play a crucial role in legitimate scientific theories. I argue that the way we evaluate multiverse models is precisely the same as the way we evaluate any other models, on the basis of abduction, Bayesian inference, and empirical success. There is no scientifically respectable way to do cosmology without taking into account different possibilities for what the universe might be like outside our horizon. Multiverse theories are utterly conventionally scientific, even if evaluating them can be difficult in practice.

Comments: Invited contribution to "Epistemology of Fundamental Physics: Why Trust a Theory?", eds. R. Dawid, R. Dardashti, and K. Th\'ebault (Cambridge University Press)
Subjects: History and Philosophy of Physics (physics.hist-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Report number: CALT 2018-003
Cite as: arXiv:1801.05016 [physics.hist-ph]
(or arXiv:1801.05016v1 [physics.hist-ph] for this version)

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Submission history From: Sean Carroll [view email]
[v1] Mon, 15 Jan 2018 21:13:54 GMT (17kb)