Multiverse - Bryant McGill

# Multiverse ## Definition **Multiverse** is the hypothesis that the observable universe is one region among many physically real domains, potentially governed by different local conditions. Its scientific standing depends on whether theories tested in observable domains entail multiple cosmic regions, not on whether those regions can be observed directly. ## Conceptual relationships [[wiki/Cosmology|Cosmology]] · [[wiki/Big Bang|Big Bang]] · [[wiki/Simulation Hypothesis|Simulation Hypothesis]] ## Martin Rees research route [[research/Martin Rees on Machine Succession, Post-Human Intelligence, and the Cosmic Future|Martin Rees on Machine Succession, Post-Human Intelligence, and the Cosmic Future]] supplies a primary quotation dossier connecting this concept to Rees's work on cosmology, technological risk, machine intelligence, posthuman evolution and deep time. ## Article and collection routes - [[collections/Machine Succession|Machine Succession]] - [[articles/We Cannot Un-Strike the Match|We Cannot Un-Strike the Match]] - [[articles/The Last Migration Will Not Be Human|The Last Migration Will Not Be Human]] - [[articles/We Were Never Going to Make It|We Were Never Going to Make It]] ## Simple Reminders, Quotations, and Thoughts  > “Some physicists don’t like the multiverse: they’d be disappointed if some of the key numbers they are trying to explain turn out to be mere environmental contingencies governing our local space-time patch—no more truly ‘fundamental’ than the parameters of the Earth’s orbit round the Sun. But that disappointment would surely be outweighed by the revelation that physical reality was grander and richer than hitherto envisioned. In any case our preferences are irrelevant to the way physical reality actually is—so we should surely be open-minded.” > **— Martin Rees**, *2017: What Scientific Term or Concept Ought to Be More Widely Known?, Edge, 2017* [[reminders/Cosmic Perspective/Reality Does Not Care Whether Physicists Like the Multiverse by Martin Rees|Reality Does Not Care Whether Physicists Like the Multiverse by Martin Rees]] > “Physical reality could be hugely more extensive than the patch of space and time traditionally called ‘the universe.’ A further Copernican demotion may loom ahead. We’ve learnt that we live in just one planetary system among billions, in one galaxy among billions. But now that’s not all.” > **— Martin Rees**, *2012: What Is Your Favorite Deep, Elegant, or Beautiful Explanation?, Edge, 2012* [[reminders/Cosmic Perspective/The Multiverse May Be the Next Copernican Demotion by Martin Rees|The Multiverse May Be the Next Copernican Demotion by Martin Rees]] > “What we have traditionally called our universe is just one island in an infinite cosmic archipelago—the multiverse.” > **— Martin Rees**, *An Interesting Scientific Question, Inference, 2017* [[reminders/Cosmic Perspective/Our Universe May Be One Island in a Cosmic Archipelago by Martin Rees|Our Universe May Be One Island in a Cosmic Archipelago by Martin Rees]] > “[The possibility of a multiverse] is speculative science, but I would say that it is science and not metaphysics. I’m hopeful that as our understanding of the physics of the very early Big Bang firms up, we will gradually develop clearer ideas about whether our Big Bang was the only one and about the overall extent of physical reality.” > **— Martin Rees**, *Martin Rees: The RealClearReligion Interview, RealClearReligion, 2011* [[reminders/Cosmic Perspective/The Multiverse Is Speculative Science Not Metaphysics by Martin Rees|The Multiverse Is Speculative Science Not Metaphysics by Martin Rees]]