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Possible Origins and Properties of an Expanding, Dark Energy Providing Dark Multiverse
Open AccessArticle

Conceptual Challenges on the Road to the Multiverse

1
Max Planck Institute for Gravitational Physics, Albert Einstein Institute, Am Mühlenberg 1, D-14476 Golm, Germany
2
Department of Financial and Actuarial Economics & Statistics, Universidad Complutense de Madrid, Campus Somosaguas s/n, 28223 Pozuelo de Alarcón (Madrid), Spain
*
Author to whom correspondence should be addressed.
The authors contributed equally to this work.
Universe 2019, 5(10), 212; https://doi.org/10.3390/universe5100212
Received: 31 July 2019 / Revised: 6 October 2019 / Accepted: 8 October 2019 / Published: 10 October 2019
(This article belongs to the Special Issue The Multiverse)
The current debate about a possible change of paradigm from a single universe to a multiverse scenario could have deep implications on our view of cosmology and of science in general. These implications therefore deserve to be analyzed from a fundamental conceptual level. We briefly review the different multiverse ideas, both historically and within contemporary physics. We then discuss several positions within philosophy of science with regard to scientific progress, and apply these to the multiverse debate. Finally, we construct some key concepts for a physical multiverse scenario and discuss the challenges this scenario has to deal with in order to provide a solid, testable theory.
Keywords: multiverse; physical multiverse; philosophy of science; empirical testability; falsifiability; Bayesian analysis; fine-tuning multiverse; physical multiverse; philosophy of science; empirical testability; falsifiability; Bayesian analysis; fine-tuning
MDPI and ACS Style

Alonso-Serrano, A.; Jannes, G. Conceptual Challenges on the Road to the Multiverse. Universe 2019, 5, 212.

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