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…
Multiverse
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.
Yes, the Big Bang could be wrong, but what would that really mean?
Actually, multiverse cosmology would make a starting point irrelevant or else subject to endless redefinition. Powell’s bookmark-able summary can’t address the problem, of course, but that’s precisely what the multiverse does. Facts no longer matter much because contradictory facts have equal status.
Rob Sheldon: Taken seriously, the multiverse proves the existence of God
In an infinite universe, somebody somewhere has figured out how to talk from one universe to another. In an infinite universe, somebody somewhere has figured out how to talk from one universe to another.
Logic vs. the multiverse: Gunter Bechly offers some insights
For example, how can we “partition an infinite multiverse so to arrive at the finite probabilities we observe and require (e.g. for quantum mechanics) because in an infinite multiverse everything that can happen happens an infinite (with the same cardinality) number of times?”
Sabine Hossenfelder summarizes multiverse theories, asks: Science or fiction?
With respect to the simulation multiverse: Why could there not be countless, helplessly infinite, simulations of the simulations as well?
In this version of the multiverse, you are unique
But wait! There might be an infinity of multiverses in which you are not unique. This is the only one in which your head has not exploded.
The key to falsifiability of not evidence but observability
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.)
The day Stephen Hawking undercut the multiverse
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.
Philosopher: A multiverse underlies the ultimate vision of technocrats
That’s what George Gilder says. And he thinks it won’t work.
An astrophysicist makes clear why a multiverse MUST exist
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.
Physicist: How the multiverse can save the soul of physics
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 […]
What would a multiverse really be like?
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.
The multiverse has become a talking point on Capitol Hill
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 […]
Mathematician: Our universe is really chaotic; we just don’t see it that way
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 […]