Search Results for: multiverse

Why do you describe the Multiverse as “pseudo-science”?

Posted on August 21, 2020 by woit

Circularity problem: Since you can’t observe anything about it directly, the multiverse must be justified in terms of another theory that can be tested and this is string theory. But if you talk to string theorists these days about how … Continue reading →

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What’s wrong with having a multiverse, doesn’t inflation imply one?

Posted on August 21, 2020 by woit

From this comment. The issue is not whether there’s more than the observable universe out there. That may very well be, and maybe someday we’ll even understand inflation well enough to have a good model of what that might be. … Continue reading →

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The Multiverse Falsified

Posted on June 19, 2018 by woit

The July 1 issue of the Monthly Notices of the Royal Astronomy Society includes an article evaluating the standard multiverse prediction of the cosmological constant, with result: The predicted (median) value is 50–60 times larger than the observed value. The … Continue reading →

Posted in Multiverse Mania | 15 Comments

15 Years of Multiverse Mania

Posted on January 29, 2018 by woit

Today is the 15th anniversary of the event that kicked off the Multiverse Mania that continues to this day, recently taking the form of a concerted attack on conventional notions of science. 2018 has seen an acceleration of this attack, … Continue reading →

Posted in Multiverse Mania | 29 Comments

Multiverse Politics

Posted on June 1, 2017 by woit

The political campaign for the multiverse continues today with a piece by Amanda Gefter at Nautilus. It’s a full-throated salvo from the Linde-Guth side of the multiverse propaganda war they are now waging, with Linde dismissing Steinhardt’s criticism as based … Continue reading →

Posted in Multiverse Mania | 37 Comments

New Year’s Multiverse

Posted on January 7, 2017 by woit

I see little to be hopeful about the new year, but had a glimmer of a hope that we’ll see a reduction in Multiverse Mania. Surely people will sooner or later get tired of stale pseudo-science. Just got back to … Continue reading →

Posted in Multiverse Mania | 73 Comments

Entanglement, the Multiverse and the Universe

Posted on November 10, 2016 by woit

“Entanglement” is the current buzzword of physics, here are two new stories featuring this: Back in 2013 one could read lots of claims in the media that “Hard evidence for the multiverse” had been found, based on “effects of quantum … Continue reading →

Posted in Multiverse Mania | 22 Comments

Multiverse Observed, South of Glasgow

Posted on March 4, 2016 by woit

It turns out the multiverse does exist, just off the A76, 25 miles north of Dumfries in Scotland. It’s called the Crawick Multiverse and is now open 10 am to 4 pm. Admission is 5 pounds, but parking is free. … Continue reading →

Posted in Multiverse Mania | 18 Comments

Lepton Photon Interactions at High Energies and the Multiverse

Posted on August 22, 2015 by woit

This past week the large biennial “Lepton-Photon” (International Symposium on Lepton Photon Interactions at High Energies) conference has been taking place in Ljubljana. These have been going on since 1965, now alternating years with the ICHEP (“Rochester”) conference. It’s been … Continue reading →

Posted in Experimental HEP News, Multiverse Mania | 17 Comments

Multiverses: Science or Science Fiction?

Posted on August 3, 2015 by woit

The September issue of Astronomy magazine is now out, with a cover story on Multiverses: Science or Science Fiction? The author Bob Berman does a good job of explaining both the arguments for various Multiverses, as well as the reasons … Continue reading →

Posted in Multiverse Mania | 59 Comments