What is parallel universe

Metaverse or multiverse? Or both? getty Are you ready for the metaverse? Or should that be the multiverse? Since both are being described as “parallel worlds” you’re naturally confused about the two concepts. Don’t be. Despite all the parallel world talk they’re very different from one another, but they do have something in common. The metaverse is one of the biggest buzzwords of the last few months largely because Facebook announced in October 2021 that it was changing its name to Meta. Is the metaverse a Facebook product? No. A loose concept of what the future of the internet looks like, myriad companies will be involved. Sure, Meta wants to be part of it—hence its name-change—but there’s no certainly it will have a decisive role. In fact, some people are so However, the metaverse will be, thinks Zuckerberg, the successor to the mobile internet. The phrase appears to have been coined by science fiction author Neal Stephenson in his 1992 novel Snow Crash, in which the protagonist travels through a 3D virtual cityscape. However, fast-forward 30 years and the modern metaverse will likely include elements of—and be built upon—some fairly recent consumer tech innovations: • Virtual reality (VR) and augmented reality (AR) headsets • Wearable technology • Social media and social interaction • Internet-wide avatars • Immersive experiences • Collaboration How—and if—these innovations will fit together is up for grabs. Given that merging them into an online virtual world is mostly...

A ‘mirror world’ parallel universe of particles that interact with our world only via gravity may ... [+] solve the 'Hubble constant' problem is cosmology. getty Is there really an unseen “mirror world” where particles interacts with our world only via gravity, but is otherwise impossible to observe? This collection of 36 images from NASA's Hubble Space Telescope features galaxies that are all hosts ... [+] to both Cepheid variables and supernovae. These two celestial phenomena are both crucial tools used by astronomers to determine astronomical distance, and have been used to refine our measurement of the Hubble constant, the expansion rate of the universe. NASA, ESA, Adam G. Riess (STScI, JHU) How the Hubble constant is measured To work out how fast the universe is expanding requires selecting anchors of light in the night sky, such as stars, galaxies and globular clusters. This is known as the However, when distant objects are measured—as the Why the disconnect between the expansion rates for the local universe and the primeval universe? The ‘Hubble tension’ The discrepancies between estimates for the universe’s expansion rate—and therefore its age—is called the “Hubble tension.” It’s so statistically significant that it suggests that astronomers may need a new interpretation of the universe’s fundamental properties. A new cosmological model, even? No, says a new theory, which reveals a previously unnoticed mathematical properties of cosmological models—scaling symmetry...

USA TODAY The claim: NASA recently discovered a parallel universe where the laws of physics are “reversed,”and time flows backward The internet was briefly captivated by the idea of parallel universes and other cosmic oddities after reports circulated that NASA had detected “evidence of parallel universe where time runs backward.” Memes and banter spread on Twitter and Facebook in the wake of several news articles making the claim. The stories largely attributed the claim to a report in the magazine New Scientist titled “ “so nasa just discovered evidence of a parallel universe ......................... brb while i go scream,” “SO NO ONE IS GONNA TALK ABOUT HOW NASA DISCOVERED EVIDENCE OF A PARALLEL UNIVERSE TO OURS WHERE TIME RUNS BACKWARDS AND ITS LAWS OF PHYSICS ARE OPPOSITE TO OURS??? okay.,” The New Scientist article references research published at the beginning of the year and outlines some of the explanations scientists have for their findings. The conclusions drawn by other outlets from the headline are inaccurate. New Scientist and neutrinos The manyheadlines claimingNASA had discovered a parallel universe can largely be traced back to an ANITA is a radio research site meant to study neutrinos — subatomic particles that don’t usually interact with normal matter. The station is funded through The New Scientist article documents debates between physicists about what explained ANITA’s abnormal detection of neutrinos. High-energy neutrinos are normally detected comin...

We can certainly imagine an arbitrarily large number of possible configurations for our Universe and the laws and constants that govern it, and we can be certain that our Universe is one of the ones that admit the existence of intelligent observers. However, neither this nor any other anthropic argument can tell us anything meaningful about entities that are not in some way tied to physical observables. Key Takeaways • The idea of parallel Universes is incredibly alluring, giving us the dream of a Universe where the wrongs we've committed in our lives were righted by a version of us that made better decisions. • Long a staple of science fiction, it's possible that scientific observations here on Earth could provide evidence for the existence of parallel Universes. • However, a recent discovery involving cosmic rays by the ANITA experiment, despite the claims of some, don't give us the evidence required to draw those spectacular conclusions. Here's why. For some of us, the idea of parallel Universes sparks our wildest dreams. If there are other Universes where certain events had different outcomes — where just one crucial decision went a different way — perhaps there could be some way to access them. Perhaps particles, fields, or even people could be transported from one Universe to another, enabling us to live in a Universe that’s better, in some ways, than our own. These ideas have a foothold not only in science fiction, but in theoretical physics as well, from the infini...

Jackson Ryan is CNET's award-winning science editor. He used to be a scientist but he realized he was not very happy sitting at a lab bench all day. Now he has the best job in the world, telling stories about space, the planet, climate change and the people working at the frontiers of human knowledge. He also owns a lot of ugly Christmas sweaters. Tweet him. Watch this: Black hole seen in real life for the first time 02:56 These particles pose no threat to us and pass through most solid objects without anyone even noticing -- some estimates suggest 100 trillion neutrinos pass through your body every second! Rarely do they interact with matter. But if they do smash into an atom, they produce a shower of secondary particles we can detect, which allows us to probe where they came from in the universe. ANITA detects neutrinos pinging in from space and colliding with matter in the Antarctic ice sheet. Over the years, ANITA has detected a handful of "anomalous" events. Instead of the high-energy neutrinos streaming in from space, they seem to have come from a strange angle, through the Earth's interior, before hitting the detector. These findings can'tbe explained by our current understanding of physics -- that much is true. "The unusual ANITA events have been known and discussed since 2016," says Ron Ekers, an honorary fellow at CSIRO, Australia's national science agency. "After four years there has been no satisfactory explanation of the anomalous events seen by ANITA so this ...

The concept of parallel universes is an idea that arises from the multiverse theory, suggesting that our universe is one of many existing universes that, in a manner of speaking, lie parallel to each other. Max Tegmark, a professor at MIT (Massachusetts Institution Technology), has cleverly put out the idea that there are four distinct types of parallel universes. Watch: Types of Parallel Universes A type 1 parallel universe assumes A type 2 parallel universe is all dependent on the two theories, which, incidentally, may possibly prove this type of multiverse; the Inflation model and the fb A type 3 parallel universe is the universe we all initially think of, and that is the alternate/mirrored reality universe. This type of parallel universe arises out of (MWI) of Quantum Mechanics to approach the phenomenon of wave-function collapse. The MWI says that for every possible quantum option, there is another universe in which such an option is realised. For example, if you come to a point in your day where you find yourself torn between the choice of two drinks, maybe just a glass of water or a bottle of Dr. Pepper, if you opted to choose the bottle of Dr. Pepper, a Type 3 parallel universes says that in the alternate reality, you actually chose to enjoy a glass of the good old H 2O instead. A type 4 parallel universe basically suggests that the mathematical equations and physical laws that govern these types of universe are very different from our own. The MWI parallel univers...