B1 Intermediate 747 Folder Collection
After playing the video, you can click or select the word to look it up in the dictionary.
Report Subtitle Errors
You and I, and everything around us appear to exist in 3 dimensions.
Up and down, front and back, left to right.
But appearances can be deceptive.
Many physicists now believe that reality is not, in fact, three-dimensional.
Instead they think that the fundamental core of reality
comes written in two-dimensional sheets, like this piece of paper.
In this view our world is a three dimensional projection
of information that's written on a two-dimensional surface,
an ilusion much like a hologram.
Clearly, this is insane.
What are these sheets?
Why would anyone think that reality is two-dimensional
when everything we know appears in 3 dimensions?
The answer lies in black holes.
Black holes famously suck in everything around them and never let go.
But what would happen if you were to throw something
with a lot of information into a black hole?
Something like a book or a hard drive.
Physicist know that information can never be lost, only scrambled.
So the information in our book can´t disappear forever
into the black hole, never to be recovered.
It must still exist somewhere accesible to us.
Physicists say it´s written on the so called event horizon of a black hole.
The two-dimensional surface that defines a point of no return.
Likewise, physicists have proven that events occurring on a two-dimensional sheet
are interchangeable with the description in three dimensions.
Mathematically it's all the same. Which leaves us to wonder:
Which is real? The three dimensions we observe
or the two dimensional description that makes the math work?
For Scientific American's Instant Egghead, I'm Michael Moyer.
Is is possible for an electron to be in two places at once?
Or for a cat to be both alive and dead at the same time?
According to quantum mechanics, both scenarios are possible.
And at the heart of this conceptual dilemma lies the wave function.
    You must  Log in  to get the function.
Tip: Click on the article or the word in the subtitle to get translation quickly!


Is Our Universe a Hologram? - Instant Egghead #63

747 Folder Collection
rcnwxiqtnqj published on May 11, 2017
More Recommended Videos
  1. 1. Search word

    Select word on the caption to look it up in the dictionary!

  2. 2. Repeat single sentence

    Repeat the same sentence to enhance listening ability

  3. 3. Shortcut


  4. 4. Close caption

    Close the English caption

  5. 5. Embed

    Embed the video to your blog

  6. 6. Unfold

    Hide right panel

  1. Listening Quiz

    Listening Quiz!

  1. Click to open your notebook

  1. UrbanDictionary 俚語字典整合查詢。一般字典查詢不到你滿意的解譯,不妨使用「俚語字典」,或許會讓你有滿意的答案喔