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TagCopenhagen interpretation (QM)

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Face in multiverse

Sabine Hossenfelder Asks, Is the Multiverse Science or Religion?

Or pseudoscience? The no-nonsense theoretical physicist reveals a gift for comedy as she tries to explain theories that place no constraints on what can happen

Some science controversies arise in disputes over findings. The current flap over the James Webb Space Telescope data, for one. Others sound like clashes over philosophy — claims about the multiverse (countless universes out there) are a good example. Theoretical physicist Sabine Hossenfelder takes on the multiverse in in her new book, Existential Physics: A Scientist’s Guide to Life’s Biggest Questions (2022). She also addresses the topic concisely — and wittily — in a short video and a blog post at Back(Re)Action. She looks at three popular multiverse models: Many Worlds, Eternal Inflation, and String Theory Landscape. Here’s her take on Eternal Inflation: We don’t know how our universe began and maybe we will never know. We just talked about…

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Symmetrical quantum mechanics waves

Here’s Why the Quantum World Is Just So Strange

It underlies our universe but it follows its own “rules,” which don’t make sense to the rest of us

In this week’s podcast, “Enrique Blair on quantum computing,” Walter Bradley Center director Robert J. Marks talks with fellow computer engineer Enrique Blair about why Quantum mechanics pioneer Niels Bohr said, “If quantum mechanics hasn’t profoundly shocked you, you haven’t understood it yet.” Let’s look at some of the reasons he said that: https://episodes.castos.com/mindmatters/Mind-Matters-110-Enrique-Blair.mp3 The Show Notes and transcript follow. Enrique Blair: It’s really quite different from our daily experience. Quantum mechanics really is a description of the world at the microscopic scale. And it’s really weird, because there are things that initially we thought maybe were particles but then we learned that they have wave-like behaviors. And there are other things that we thought were waves and then we…