Posts from What does the universe consist of?

Personally, I believe that the universe is not infinite; it's like the Earth, meaning it's spherical...

What's your opinion?

the universe consists of many galaxies...
and no one knows how big it is. if it is spherical, what is outside of it? and infinity simply doesn't fit into the human mind. but it is believed that it is infinite. the brain refuses to process it.

what's outside of it?

Nothing) Just darkness and that's it.

Why darkness specifically? But isn't it also a space?

Hmm... I still think that the universe is spherical; it can't be infinite, everything has an end.

The point is that we cannot know what exists at a distance of 13.7 billion light-years from us because, relative to us, that part of the universe has not yet been created. There is nothing there. And for this reason, it is impossible to determine the actual size of the universe. Although there are assumptions that its duration is no less than 90 billion light-years. But neither the human mind nor human instruments will be able to provide all the answers with certainty for a long time.

By the way, the shape of the universe has not yet been discovered by cosmology. There is a big question mark here.

Incidentally, there is such a theory in philosophy... I won't say the name because I might be wrong. But the essence is that there is no elementary, indivisible particle, just as there is no maximum large cluster of bodies. That is, the universe is not the limit; there is an incredible number of such substances (if I may express it that way) that, instead, create something even larger. And so on – infinitely... :)

By the way, there is such a theory in philosophy... I won't say the name, as I might be wrong. But the essence is that there is no elementary, indivisible particle, just as there is no maximum accumulation of bodies. That is, the Universe is not the limit; there is an incredible number of such substances (if one can express it that way) that, instead, create something bigger. And so on... infinitely.

Parallel universes?

parallel universes are a mystical alternate dimension, if you will.
and what Vih told us about are also such "clusters" - accumulations of a certain number of galaxies, just like ours. and there is nothing between them. I mean, no other bodies. only a monstrously huge space.
...oh, when will they finally study warp drive? :-(
it would answer a lot of questions.

By the way, I have a hunch about the infinity of the universe...

If they say that all information is recorded in space, then it means that every action we take increases the size of the universe by n units. So, right now, I'm sitting here and typing – thereby increasing the size of the universe. Maybe it's absurd, or maybe it's true.

The universe is indeed expanding. It seems that this has already been scientifically established and even explained. But what you suggest is quite a fantastic hypothesis. What is the connection? Does the electromagnetic field emitted by the brain have such an effect? o_O Or is there something even more mysterious? No, it's too early to talk about that. :) By the way, the human brain holds no fewer mysteries than the universe, but that's another story, or, if you like, off-topic. :) By the way... in cosmology, galaxy clusters are already identified. :) And between them, there are indeed incredibly vast distances. And that mysterious substance located between them (in theoretical models, it must exist) is called dark matter. Something like that. But so far, no one has seen it, kept it in test tubes, etc. It's one of the mysteries of the universe, let's say. As for parallel worlds in science fiction, they have a perfectly logical basis. Just as parallel lines can exist in a plane, and parallel planes can exist in space, parallel spaces can theoretically exist in the 4th dimension. And if we remember the famous astrophysicist Albert Einstein and time as the 4th dimension... there can be only guesses, in general. :)

What can one read about this topic in general?

What can you read about this topic?

There is a science called Astronomy. (Don't confuse it with astrology.) :D There are many good books, or you can just Google it.

Yes, I know about that field, but I'm interested in something specific, explained in a clear and understandable way.

In other words, are you interested in what exactly constitutes this universe?

Yes, I know about that field of study. I'm interested in something specific, but explained in a clear and understandable way.

I read an astronomy textbook for 11th grade over the summer. To my great surprise, I found it in a bookstore and soon acquired it. It's quite interesting reading, but it's still a textbook. If you're not interested in astronomy as a science, it's better to choose something more accessible, as there are plenty of websites and magazines available now, and they should be easy to find through a search engine. Popular Mechanics, for example, but it covers more than just astronomy. By the way, Wikipedia doesn't always explain things using complex and incomprehensible math; you can find some useful information there too.