Laszlo Bencze: The multiverse theory is irrefutable because alternate universes are, by definition, forever inaccessible. (If they were accessible through some very difficult convoluted route, they would still be part of our universe.)
Regis Nicoll: Stephen Hawking had for many years considered the idea that “black holes are birthing centers for Star Trek phenomena like wormholes, time tunnels and multiple universes.” Then, in 2004, he turned on the idea.
That’s what George Gilder says. And he thinks it won’t work.
You should be suspicious of any science claim that could have been thought up as a sheer work of the imagination. The multiverse is just such a concept: Somewhere, everything and its opposite happens or doesn’t, in an infinity of infinities. No math needed.
A physicst calls it quantum monism but he more or less means the multiverse. The problem, as he sees it, is that “the laws of physics appear to be finely tuned to permit the existence of intelligent beings who can discover those laws—a coincidence that demands explanation”. However, if we accept that there are zillions […]
The multiverse is not a logical deduction from the state of our universe. It is an attempt to short circuit discussion of apparent fine-tuning by appealing to the idea that no conclusions can be drawn because there is an infinite series we do not know about.
You can’t ground a discussion in basic reality, says one commentator, “without somebody, sooner rather than later, confidently pronouncing something like “our universe is just one of many universes that are constantly evolving and forever changing.” He offers a response, courtesy Regis Nicoll: Everett imagined that each split created a parallel universe in which particles […]
Is it only selective attention that causes us to see order in the universe? There is another, more interesting, explanation for the structure of the laws of nature. Rather than saying that the universe is very structured, say that the universe is mostly chaotic and for the most part lacks structure. The reason why we […]
Get a load of this: More recently, scientists have pointed out that if one tweaks many of the dimensionless physical constants — numbers like pi that are independent of units and simply exist as fundamental ideas — none of the cosmos we see would exist. One of these numbers is omega, the density parameter, which […]
And have to leave academic science. Factually correct answers do not matter now if they are not politically correct. In a review of Adam Becker’s What Is Real? The Unfinished Quest for the Meaning of Quantum Physics (Basic Books, 2018), mathematician and physicist Sheldon Lee Glashow tells us No one can doubt that quantum mechanics is […]
To hear the multiverse enthusiasts tell it, many worlds theory offers no problems. But you probably sensed that that wasn’t very likely: It says that our unique experience as individuals is not simply a bit imperfect, a bit unreliable and fuzzy, but is a complete illusion. If we really pursue that idea, rather than pretending […]
We are told: “Wherever you look in the cosmos, things don’t seem to add up.” And now physicists like Sabine Hossenfelder are accused of cheating: Ethan Siegel, astrophysicist-blogger behind Forbes’ Starts With a Bang! blog, responded with a post titled “There’s A Debate Raging Over Whether Dark Matter Is Real, But One Side Is Cheating.” […]
It’s becoming obvious that post-modern science will have its multiverse irrespective of evidence from nature and will prefer it and its component beliefs to evidence from nature. That is why some of us think that the multiverse is science’s assisted suicide.
From Ethan Siegel at Forbes: So why do so many theoretical physicists write papers about the multiverse? About parallel Universes and their connection to our own through this multiverse? Why do they claim that the multiverse is connected to the string landscape, the cosmological constant, and even to the fact that our Universe is finely-tuned […]
From Jim Baggott at Prospect: Over the last few decades “multiverse theories” have become increasingly fashionable within a relatively small—but publicly vocal—group of theoretical physicists. This group specialises in foundational problems in cosmology, particle physics, and quantum mechanics. These theories are advertised as science’s answer to much that we can’t otherwise explain about the universe […]