Slashdot Mirror


Study: Our 3D Universe Could Have Originated From a 4D Black Hole

New submitter TaleSlinger sends this quote from Nature: "Afshordi's team realized that if the bulk universe contained its own four-dimensional (4D) stars, some of them could collapse, forming 4D black holes in the same way that massive stars in our Universe do: they explode as supernovae, violently ejecting their outer layers, while their inner layers collapse into a black hole. In our Universe, a black hole is bounded by a spherical surface called an event horizon. Whereas in ordinary three-dimensional space it takes a two-dimensional object (a surface) to create a boundary inside a black hole, in the bulk universe the event horizon of a 4D black hole would be a 3D object — a shape called a hypersphere. When Afshordi's team modeled the death of a 4D star, they found that the ejected material would form a 3D brane surrounding that 3D event horizon, and slowly expand. The authors postulate that the 3D universe we live in might be just such a brane — and that we detect the brane's growth as cosmic expansion. 'Astronomers measured that expansion and extrapolated back that the Universe must have begun with a Big Bang — but that is just a mirage,' says Afshordi."

9 of 337 comments (clear)

  1. Re:Sorry by Anonymous Coward · · Score: -1, Offtopic

    I like turtles.

  2. Re:Sorry by ClaraBow · · Score: 0, Offtopic

    4D chocolate covered turtles!

  3. Re:Sorry by davester666 · · Score: -1, Offtopic

    I like turtle soup.

    --
    Sleep your way to a whiter smile...date a dentist!
  4. Re:Sorry by JustOK · · Score: -1, Offtopic

    Happy together with the turtles

    --
    rewriting history since 2109
  5. Re:Sorry by tmosley · · Score: -1, Offtopic

    Shredder?

  6. Re:Sorry by Anonymous Coward · · Score: -1, Offtopic

    Our universe is a naked Natalie Portman, covered in hot turtles.

  7. Re:Sorry by FatdogHaiku · · Score: 1, Offtopic

    Turtles all the way down.

    I disagree. Also, someone needs to alert Joni Mitchell that she needs to rework the Woodstock lyrics to go
    We are starfarts
    We are 3D
    And we've got to get ourselves
    A better overall grasp of what the hell happened...

    --
    You have the right to remain sentient. If you give up the right to remain sentient, you will be elected to public office
  8. Mock Turtle Soup by flyingfsck · · Score: -1, Offtopic

    'Beautiful Soup, so rich and green,
    Waiting in a hot tureen!
    Who for such dainties would not stoop?
    Soup of the evening, beautiful Soup!
    Soup of the evening, beautiful Soup!
    Beau—ootiful Soo—oop!
    Beau—ootiful Soo—oop!
    Soo—oop of the e—e—evening,
    Beautiful, beautiful Soup!

    'Beautiful Soup! Who cares for fish,
    Game, or any other dish?
    Who would not give all else for two
    Pennyworth only of beautiful Soup?
    Pennyworth only of beautiful Soup?
    Beau—ootiful Soo—oop!
    Beau—ootiful Soo—oop!
    Soo—oop of the e—e—evening,
    Beautiful, beauti—FUL SOUP!'

    --
    Excuse me, but please get off my Pennisetum Clandestinum, eh!