Multiverse News

The multiverse is ever simmering

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Never boils. But that somehow never matters.

Do readers remember these stories? The multiverse circus is coming back to a PBS affiliate near you? And If you’ve ever doubted that popular culture loves the multiverse…

Well, here is public broadcasting on Gravitational Waves From Bubble Universe Collisions:

Follow inflation to what many theorists think is its logical conclusion, though, and things get very strange. That’s because many versions of inflation lead straight to a multiverse: that is, a cosmos in which our universe is just one of many universes, each with different laws and fundamental constants of physics. The idea is controversial, not least because there is no guarantee that we would ever be able to prove or disprove the existence of these other universes. Now, a team of theorists has shown that a collision between universes would create gravitational waves that could imprint a unique polarization signal on the sky, potentially providing observational evidence for the existence of other universes.

Jonathan Braden, who worked on the paper while he was a graduate student at the University of Toronto, compares the multiverse to a pot of simmering water. As the water boils, air bubbles big and small spontaneously pop into existence and jiggle about. Now imagine that our entire known universe is one of those air bubbles, swimming through the “water” of the universe’s native vacuum energy, as other bubbles emerge around it. The analogy isn’t perfect: For one thing, the energy that drives the creation of new bubble universes isn’t thermal energy, like the heat of a stove, but the inevitable fluctuations that are built in to the principles of quantum mechanics. Even stranger, the “pot”—the space in which the bubble universes are emerging—is constantly getting bigger, and the water supply always being replenished.

In this ever-simmering universe, bubbles may occasionally bump in to each other. If our universe was part of such a collision some time in the distant past, it could leave a telltale circular “bruise” on the cosmic microwave background (CMB) radiation. Astronomers first scanned the CMB’s tiny temperature variation for this telltale mark back in 2011, using measurements from NASA’s Wilkinson Microwave Anisotropy Probe, but found nothing. A second analysis also came up empty-handed.

One senses that, in general, evidence is irrelevant. People gotta believe.

See also: How the multiverse got invented without evidence. (Doubt as the engine of science?Also known as the war on falsifiability?)

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4 Replies to “The multiverse is ever simmering

  1. 1
    bornagain77 says:

    How many multiverse theories have these guys got?
    Let’s see, off the top of my head there is the string theory multiverse. A theory which mathematically tries to unify Quantum Mechanics and General Relativity into a theory of everything. I believe, 10^500 multiverses pop out of that mathematical sleight of hand.
    Then there is this inflation multiverse which tries to account for why the universe is as ’round and flat’ as it is…. but it turns out once inflation starts creating universes it just can’t help itself and creates infinitely more universes. i.e. it predicts everything and therefore it predicts nothing!
    Then there is the ultimate fine-tuning multiverse in which, I believe, all the fine-tuning, (not just the roundness and flatness), is tried to be accounted for. Boltzmann Brain’s never had it so good.
    Then there is the quantum many worlds multiverse in which the universe splits into a quasi-infinite number of parallel universes every time we try to observe a single particle.,,, Are you sad that you didn’t when the lottery? Don’t be sad some other copy of you one it in a parallel universe an infinite number of times!

    So basically, scratch on the surface of any multiverse scenario and you will find, not any substantiating evidence, but you instead will find a random infinity of some sort that was thrown up from the imagination of an atheist just so as to avoid an inference to God.

    If some people find my back of the envelope list of multiverses a bit crude, here is the ‘official’ multiverse list from Mr. Multiverse himself, Max Tegmark

    Parallel Universes by Max Tegmark – (Ironically subtitled) Not Just A Staple Of Science Fiction Other Universes Are Direct Implications Of Cosmological Observations – May 2003

    THE SIMPLEST TYPE of parallel universe is simply a region of space that is too far away for us to have seen yet. The farthest that we can observe is currently about 4 x 10^26 meters, or 42 billion light-years — the distance that light has been able to travel since the big bang began. (The distance is greater than 14 billion light-years because cosmic expansion has lengthened distances.) Each of the Level I parallel universes is basically the same as ours. All the differences stem from variations in the initial arrangement of matter

    A SOMEWHAT MORE ELABORATE type of parallel universe emerges from the theory of cosmological inflation. The idea is that our Level I multiverse — namely, our universe and contiguous regions of space — is a bubble embedded in an even vaster but mostly empty volume. Other bubbles exist out there, disconnected from ours. They nucleate like raindrops in a cloud. During nucleation, variations in quantum fields endow each bubble with properties that distinguish it from other bubbles.

    QUANTUM MECHANICS PREDICTS a vast number of parallel universes by broadening the concept of “elsewhere.” These universes are located elsewhere, not in ordinary space but in an abstract realm of all possible states. Every conceivable way that the world could be (within the scope of quantum mechanics) corresponds to a different universe. The parallel universes make their presence felt in laboratory experiments, such as wave interference and quantum computation.

    THE ULTIMATE TYPE of parallel universe opens up the full realm of possibility. Universes can differ not just in location, cosmological properties or quantum state but also in the laws of physics. Existing outside of space and time, they are almost impossible to visualize; the best one can do is to think of them abstractly, as static sculptures that represent the mathematical structure of the physical laws that govern them. For example, consider a simple universe: Earth, moon and sun, obeying Newton’s laws. To an objective observer, this universe looks like a circular ring (Earth’s orbit smeared out in time) wrapped in a braid (the moon’s orbit around Earth). Other shapes embody other laws of physics (a, b, c, d). This paradigm solves various problems concerning the foundations of physics.

    Here is a brief Refutation of all of Max Tegmark’s 4 levels of multiverses – February 2014

    Quotes, Verse, and Music:

    “There are more things in heaven and earth, Horatio, Than are dreamt of in your philosophy.”
    Shakespeare – Hamlet

    John 3:12
    I have spoken to you of earthly things and you do not believe; how then will you believe if I speak of heavenly things?

    Creatures are not born with desires unless satisfaction for these desires exists. A baby feels hunger; well, there is such a thing as food. A duckling wants to swim; well, there is such a thing as water. Men feel sexual desire; well, there is such a thing as sex. If I find in myself a desire which no experience in this world can satisfy, the most probable explanation is that I was made for another world.
    C.S. Lewis (Mere Christianity, Bk. III, chap. 10, “Hope”)

    Brooke Fraser- “C S Lewis Song”

  2. 2
    Mapou says:

    Multiverse religion = The Force is strong with the superstitious, the Dark Side of the Force, that is.

    Use the Force, my materialist Jedi friends. With the Force, you can rule the multiverse and conjure up even more ridiculous crap right out of your asteroid orifices. 😀

  3. 3
    JDH says:

    I apologize in advance for sounding a bit crude, but one of the things that strongly convinces me of the truth of the Bible is the crap that smart people will believe after they willingly choose to not believe it.

  4. 4
    ppolish says:

    A common nonscience misconception of the Multiverse is that they teem with life forms wild and wonderful.

    But they don’t. They’re dead. 10 raised to the 10000 dead Universes to “our” one live one.

    Multiverse Theory is a theory of ultimate inefficiency.

    God = Omniscience
    Multiverse = Omnistupid

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