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Multiverse

Listen to Mother Nature Network convince itself that parallel worlds exist

Nope. Not a chance the proposed evidence will matter. The parallel universe folk probably don't like our universe because it shows massive evidence of fine-tuning and that implies an intelligent origin. Any alternative theory will always be popular, irrespective of evidence. Read More ›

Sabine Hossenfelder on why the Anthropic Principle is controversial

It’s controversial because it is sometimes used to support the idea of a multiverse. Otherwise, it should be common sense to assume that a venue in which we exist must feature conditions that allow for that. But the multiverse does not need logic, evidence, or science. Read More ›

John Horgan on how multiverse theories are bad for science

The Scientific American columnist is unimpressed by two recent books on the subject, cosmologist Sean Carroll’s Something Deeply Hidden and science writer Tom Siegfried’s The Number of the Heavens. Read More ›

Rob Sheldon: The quantum effects shown in large molecules may make theories like the multiverse testable

Sheldon: "By measuring a hot stream of molecules with billions of states, this experiment may rule out CSL [Continuous Spontaneous Localization]. If so, it would be the first time an interpretation of QM was actually invalidated, suggesting we have entered a new era of testing theories of the foundations of QM." Read More ›

Multiverse is science based on zero evidence, science writer complains

Baggott, of course, also feels the need to take the ritual swipe at ID. He must do so because he is allowed to criticize crackpot cosmology provided that he holds to no thesis about the nature of nature that would impede its actual advance. He can regret it but he must not undermine it. Read More ›

Sean Carroll: A multiverse is the price we pay for unifying physics

Carroll: “The price we pay for such a powerful and simple unification of quantum dynamics is a large number of separate worlds.” Right. And the price you pay for suicide is that nothing you do in this world afterward matters. Read More ›

Sean Carroll: Physicists don’t even want to understand quantum mechanics

Carroll wants a multiverse out of any new findings, one suspects. One question many might have is, apart from the lack of a multiverse, how bad is the current situation in physics? What, besides that, is going wrong? Read More ›

At Nature: The “bizarre logic” of the multiverse is explored in a review

Crease writes as if he would very much like to buy into Carroll's ideas but still thinks that sanity has something to offer. Possibly, many establishment science figures teeter on that brink. Read More ›

What elements of fine-tuning of our universe (vs. the multiverse) would pass this test of science truth?

Ethan Siegel: Even the most successful scientific theories imaginable will, by their very nature, have a limited range of validity. But we can theorize whatever we like, and when a new theory meets the following three criteria... Read More ›

The multiverse is just religion, theoretical physicist charges

Of course she’s right about the religion part. Much that is going wrong with science today is the tendency to use various science ideas as secular religions. The multiverse happens to be a particularly devastating one because it strikes at the very idea of evidence. Read More ›