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Old 02-20-2019, 05:24 PM
 
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Quote:
Originally Posted by rjshae View Post
What is space anyway? Every time I try I can't wrap my head around it. It seems to be able to make more of itself, and every location is able to respond to the net distribution of mass in the Universe. How can it even exist?
Well. . . Physicists who hold to the holographic view of the universe, in which our three dimensional universe is really a projection produced by a two dimensional surface at the horizon of the universe (not our visible universe, but wherever the edge of the universe, if there is an edge, happens to be), and projected into the 'inside of the bubble of the universe,' have suggested that space may arise from quantum entanglement.

Space has been called a fabric, part of the space-time fabric. It is composed of 'something' and of course seethes with 'quantum foam' - quantum particles that are constantly coming into and out of existence.

Experiments have shown that space is something can be twisted. The rotation of the earth actually drags space along with it. . . to a very small degree.
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Old 02-21-2019, 02:54 PM
 
Location: Seattle
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I understand the details. But that's really just moving one layer down the stack of turtles. What is the "surface" made of at the horizon of the Universe?
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Old 02-21-2019, 09:40 PM
 
22,794 posts, read 17,268,975 times
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Quote:
Originally Posted by rjshae View Post
I understand the details. But that's really just moving one layer down the stack of turtles. What is the "surface" made of at the horizon of the Universe?
Obviously, no one actually knows, even assuming the holographic universe idea is valid. Leonard Susskind refers to the horizon of the universe as a ''film like thing''. Like a photographic film. Of course this all comes out of the study of black holes and how the event horizon of the black hole (is thought to) project what's on the horizon into the black hole. The event horizon of a black hole consists of gas, dust and other stellar debris. Some have suggested that our universe is inside a black hole.

I like this interview with Susskind on the subject.

Is The Universe A Hologram?


https://www.youtube.com/watch?v=iNgIl-qIklU
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