Is the universe finite, is the universe finite? What s out there?

The universe is finite and unbounded. Like the Mebius Belt, because it contains space that is not just thinking.

No, the universe is expanding.

The universe is finite and unbounded, just like a balloon, we are inside the sphere, the space of the sphere is limited, but we can never go to the end in it, just like walking on the surface of the earth can never reach the edge.

Flying in the universe, even if you have reached the farthest point of the universe, you cannot fly out of the universe, because space is distorted, even if you keep flying in one direction, in distorted space, the flight path looks curved from other spaces, and it flies around the farthest part of the universe. Flying inside the universe, no matter which direction you go, will eventually return to the starting point.

Molecule = > Atom = > Nucleus = >...= > quark = > neutrino = > .=> Shakyamuni Buddha said: Don't say it, don't say it).

And vice versa infinitely large

Actually, the universe has a edge

Everything that exists has to have an edge (even if it's still expanding), at least at the moment you speak, it's edged, and that's the chance, and that's all I can say

Wow, what a big topic...

I think there are several universes in which black holes are conduits ...

The two-dimensional earth can be said to be a three-dimensional universe, and if you talk about the outside space, I'm afraid you can't prove it if you find Hawking. However, the two-dimensional universe is flat, and the earth is also flat. But if you think about it carefully, it's like a three-dimensional piece of paper, excluding its height of a few microns, take this plane as an example, and compare it to a two-dimensional space.

If you put this piece of paper in this three-dimensional world, and it is surrounded by three-dimensional objects, then it is also in a three-dimensional space. And so on, what is the space outside the two-dimensional universe??。 Continuing with the analogy, the three-dimensional universe is our space, and what is outside it (first of all, we must determine that the universe contains space and time).

Of course, this is only dimensionally finite, not truly infinite.

And on the first floor, since the universe has edges, so I'm going to ask, how does an old man stab through the universe with a long enough cane, and if the universe has a boundary, then this crutch is half in the universe, half outside the universe, and there is no space outside the universe, so how is that explained? Don't jump to conclusions.

Suppose the universe is the Earth, then what's out of the Earth is what we know now. So if you know, you can answer, if you don't know, you have to imagine, and if you imagine it, you can't prove it, so what can you do...So....

The universe has shapes, first of all, you have to understand the composition of 4-dimensional objects, the universe is not a sphere, it is a spiral and cyclic shape, and you can't go to the end. Moreover, the universe we live in is just one of countless universes, just like a cell in your body, we are just an insignificant point in the cell.

It's finite and boundless, and what you're talking about is the frontier of the universe that can be observed now, but it's actually a part of the universe. The first understanding: imagine that you are a two-dimensional creature living on a sphere.

Let's say we are good on the surface of the earth, but we don't take into account the height. Well, the sphere is finite-sized, but it has no boundaries, and it comes back in a circle

The second understanding: The universe itself refers to the sum of matter in space-time, and this total amount is not infinite, so the universe is finite. But it has no edge, because if you go somewhere, then because you are also a part of this universe, so the place where you are is is always a part of the universe, so you can't go "outside" the universe anyway, so the universe has no boundaries.

A: The universe is infinite.

Scientists have determined that the universe is infinitely changing, and Einstein's theory of relativity also proposed that everything changes relatively.

I think the universe is infinite. And our limited knowledge so far only allows us to understand a small part of it. But that shouldn't limit our horizons. We need to look longer and farther.

The only thing that can be known at the moment is that the origin of the universe was through a great **. As for whether the universe is finite or infinite. All I can say is that nothing is infinite except mathematics.

I don't know, we can't observe the boundaries of the universe at the moment, but we can't say that the universe is infinite, or maybe the universe is finite, but we don't have the ability to observe it yet.

The universe is the space that holds all matter.

And the object that exists as life is also matter, but it is a matter in a special state. The state of matter must evolve.

According to natural selection (in fact, the basis of natural selection is the intersection of death and birth), if the life of a species is eternal, there is no death in the world, so that the earth will not be able to support the increasing number of species, then there is only one result, that is, death.

If this concept is not born, even if a species does not die of aging, it will also die out due to environmental factors, and because it cannot reproduce new species, then the species will become extinct. The result is still death. Moreover, since there is no such thing as 'birth', the word evolution cannot appear in nature, which is not good for nature.

Then it is very likely that humans will not be able to appear.

So in general, nature is great, and it is able to conceive of all the unfavorable factors and avoid it. so that its people can survive in the best possible conditions.

To say that the universe is infinite because human beings still know relatively little about the universe, and that there is still a vast space that is unknown, to say that it is finite, because the universe is still composed of matter, and everything is limited.

Current theories suggest that the universe is infinite, but because the universe expands faster than the speed of light, the universe we can see is finite.

Is the universe finite or infinite? Hawking argues that the universe is finite.

A brief examination of the concept of "universe".

universe - This word, translated roughly as the Chinese word "universe", but whether it corresponds or not, we have already translated it with the Chinese character [universe]. Universe is a Western astronomical term, which has the meaning of all things, systems, fields, systems, and scopes, and in the field of astronomy, it refers to relatively independent planetary systems and larger planetary systems.

The Chinese word [universe] is a compound word with two meanings, yu - refers to space, and within the liuhe (front and back, left and right, up and down) are all [yu]; Universe - refers to time, and has been called "Celestial" throughout the ages (past, present, and future). Therefore, the Chinese word "universe" does not refer to "all things" but to all the states of time and space.

From the above analysis, it can be seen that the meaning of the word "universe" in Western is very different from the meaning of "universe" in Chinese, so it is necessary to figure out which universe you are talking about. If you are that "universe" in the West, it must be limited, but if you speak the "universe" in Chinese language, it is infinite, and this is well documented.

There are two possibilities: the universe is finite and has a certain size, or it is infinite and forever. Both possibilities have a puzzling meaning.

In another episode of Space Guide, we talk about how big our universe is, because I'm a terrible host, and I'm just saying that it all depends on whether the universe is finite or infinite, grunting a few words and waving my hand, thus obscuring the puzzling implications of both possibilities and moving on to the next sharp topic about science cults. I acted as if nothing had happened and immediately got off the elevator.

So, it's okay to deal with it with the same mindset as the person who feels it, and I'm going to leave my shame behind and start talking about the universe. If the universe is finite, you can use a very long ruler to measure its size, even though it is finite. You can also follow up with all sorts of silly pranks to make such statements.

Sure, the universe may wrap itself in a puzzling shape, like a monster doughnut or dodecahedron, but if our universe were infinite, all assumptions would be overturned, and it would just keep stretching in all directions. My brain had already begun to sink into an anticipation to discuss the meaning of the infinite universe.

Didn't astronomers try to figure it out? Of course they do. These fragile mortals like you are obsessed with this and have ordered some of the most powerful and sensitive space satellites ever built to this problem.

Astronomers have delved into the cosmic microwave background radiation, the afterglow of the Great **. So, how do you validate this idea by just looking at the sky?

Here's a testament to how smart they are. Just as the two sides of the risk map are interconnected, or like there's a border on Pac-Man's chessboard, they've been looking for evidence that features on one side of the sky are also related to features on the other side of the sky. But so far, there is no evidence of a link between them.

In our human terms, this means that the universe does not repeat itself in all directions at 13.8 billion light-years. Light travels to us in this way from all directions for 13.8 billion years, and that's when light leaves these areas. The expansion of the universe has taken them 47.5 billion light-years away.

Based on this, it can be known that our universe is 93 billion light-years in diameter, which is the "smallest" number. It could be 100 billion light-years, or it could be 1 trillion light-years. These we don't know, maybe it could be infinite, we can't possibly know its diameter.

If the universe really were infinite, we would get a very interesting result, and I guarantee it would give you a headache all day. After such moments, I prefer to soak my head in some XKCD, oatmeal, or candy powder.

The diameter of the universe that can be detected by humans is 92 billion light-years, and the universe has been in a state of expansion since the beginning of the big **, so there is no definite conclusion on how big the universe is.

The universe is infinite, and under people's current scientific and technological means, it is impossible to detect the edge of the universe, and there are already scientists who agree with the view that the universe is infinite and expanding rapidly, so I think the universe is infinite.

I think the universe is finite. The universe will not be infinite, it must have boundaries, and the matter in the universe will not be created out of thin air, it is finite, then the universe will have a limited scope.

According to the current scientific theory, the universe is finite, the universe is created through a large **, and now the universe is in a state of infinite expansion, so the universe has a limit.