Does the multiverse represent the 4th dimension?

Answer 1

No. Time is the 4th dimension.

The multiverse is the collection of all universes.

Answer 2

Justin is correct.

Our known universe is so-called Euclidian space, which means the Pythagorian theorem S^2 = x^2 + y^2 + z^2 holds true. x,y,z are Cartesian representations of the three spatial dimensions. S is a plane (a brane) defined in space by the three spatial dimensions. [NB: If our space were not Euclidian, like a sphere, S^2 <> x^2 + y^2 + z^2. This can be demonstrated by drawing a "right triangle" on the surface of a sphere; in which case, S^2 <> x^2 + y^2; where S is the hypoteneuse and x and y are the other two sides.]

t is time, the fourth dimension. This gives rise to the feasibility that points in space can move about over time. So to completely specify where something is, we really need to also specify when something is (x,y,z,t). This is why our universe is called a 4D universe.

Your multi, parallel universes supposes dimensions beyond the usual four dimensions in our universe. String/M theory, for example, posits up to eleven dimensions; seven beyond our meager four. [See source.] And, with those extra dimensions, we can WAG (speculate) about universes other than our own lying on one or more of those extra seven and, therefore, out of sight.

Brian Greene visualizes the parallel universes as slices of bread in a mega universe loaf. Some have posited that the big bang resulted when two parallel universes (ours and one other) actually collided...thereby releasing the unimaginable energy that cooled and expanded to form all matter and energy in our known universe.

Answer 3

If, by multiverse, you mean alternate realities of our own here-and-now, where would the matter come from? The law of conservation of matter and energy would not allow even one other reality.

However, if you mean other Big Bang-created worlds, then according to some* there are lots of other ones.

The fourth dimension sometimes refers to time. A fourth spatial dimension might exist as part of our own 3D experience but we couldn't "go there.'

Answer 4

no no no no no no no , people...time is NOT a dimension. it is a man made ordinal device so we can talk about our limited perceptions in a linear fashion....like , when is dinner ready.

each dimension relates DIRECTLY to the previous one.

Here we go:

Zero-D : a point . no dimension...almost an abstraction...represented as a dot.
..........move it at a right angle to itself.........you get....

One-D : a line . one dimension=lenght.
..........move it at a right angle to itself.........you get....

two-D : a plane . two dimensions lenght & width.
..........move it at a right angle to itself.........you get....

Three-D : a cube .your starting to get this....wait.....
..........move it at a right angle to itself.........you get....

Four-D : ....problem....i'm a 3-D object , and i can't point to a right angle to myself......that don't mean it ain't there!!!

think about this for a sec. , a 2-d object has no idea where up or down is....it's 2-d....no frame of reference. It can ,however, move. And if it can move , then it has velocity. Velocity is a function of time. And we know that time isn't the third-d...

Now let this bake your brain for a moment:
the shadow of a line is a point...
the shadow of a plane is a line....
the shadow of a cube is a plane....
the shadow of a 4-D object IS a 3-D object.
YOU are a 3-d object.

dimentionality has this kind of relationship. Time is irrelevent.

we study 4-d objects by computer simulations of their 3-D shadow shapes.



breathe...

Answer 5

Multiverse? What is the multiverse?