The observable universe has a diameter of more than 90 billion light years, and the unobservable universe is much larger. The entire universe is so huge that it is almost impossible to fully understand it. However, according to some theories and research perspectives, the universe will be so small that it is insignificant. We, too, today will be answering this remarkable question: What if the universe were an atom?
According to the latest calculations, the diameter of the unobservable universe would be mind-boggling — more than 20 trillion light-years. However, although the universe with a diameter of more than 20 trillion light-years is very large, most of it may be empty. Here we can reliably make this assumption based on the fact that we can observe the universe, that is, the universe is uniform everywhere, but the observable matter is very scarce. Most of space appears empty to us; even so, observable matter is not created by accident, it doesn’t simply exist somewhere.
We can know from any physics textbook that matter is actually composed of a large number of atoms, and these “little things” make everything in the world exist. Atoms are so tiny that even our most powerful light microscopes can’t directly observe them, which means we know very little about what they really look like beyond our predicted scientific model diagrams. However, rigorous science has proved the absolute existence of atoms. At the same time, it has also proved that atoms are composed of a series of subatomic particles, including: protons, neutrons, electrons, quarks, etc. Today, the tiny and numerous properties of atoms are known to human beings.
For example, an average human adult contains about 700 billion trillion billion atoms (a 7 followed by 27 zeros)! In addition, there are some theories that believe that all people, all matter, all space, and even the entire observable and unobservable universe may actually be just an atom. This theory is called the one-electron universe theory. It believes that electrons as we understand them are actually the product of a particle – a single electron travels back and forth through time at an extremely fast speed, thus giving humans the illusion that electrons are very numerous and complex. .
It’s probably not surprising that the scientific community lacks support for this particular theory. But the theory is only just being proposed, and similar theories already have a lot of support. The more important change is: Although the existence of atoms, electrons, and many properties of matter is similar to what we understand, they are all atoms in another vaster universe. This view stems from the multiverse theory, which is often used by science fiction writers and filmmakers. Everything we know is connected to something around us. Our universe is but a speck of dust on some higher plane of existence.
Or, we can do the opposite, go back to our universe and consider that all the atoms that make up our plane of existence actually contain other planes of existence as well. It’s a puzzling concept built on the notion of the immensity. In addition to Buzz Lightyear’s catchphrase: “Fly to the universe, the vastness”, the infinite nature is also a very macroscopic concept that confuses us, but here, we can also understand the infinite as: no matter how big our universe is , if we accept the multiverse theory, then another universe may be even more vast. From the vantage point of anything in the larger universe, by contrast, we become subatomic.
When we look around, we see that the universe (at least in our general understanding) already functions somewhat like this. All tiny subatomic particles keep creating bigger and bigger things until we discover the largest celestial bodies and the most complex living organisms. Whether it’s a massive star in a distant galaxy, a towering skyscraper in a busy city, or just that sandwich you had for lunch today, they all use the exact same elements.
So why stop at the biggest things we know of? Why not magnify, magnify, magnify, even the universe is just a part of something bigger? Until we arrive at a theory of everything that combines quantum and classical physics and ultimately explains reality, this blurred line between the micro and the macro cannot be completely ignored. After all, according to The Theory of Everything, the most accepted theory is that the universe started out as an infinitely dense and tiny singularity that expanded to gain energy and life through the Big Bang.
Everything in the universe now came from a singularity that was once very small. The difference is that no matter how small the singularity that later gave rise to the Big Bang contained all the matter that makes up atoms as we know them today. So, the universe at this stage is not actually an atom, but a singularity. String theory is one of the most realistic theories. As for the various models established by string theory, the common theoretical basis behind them is that atoms are not the spherical substances we usually describe, but are essentially vibrating string-like objects.
This string-like vibrating object can also be used to explain many phenomena, such as many physical laws that can be applied to this theory, as well as the nature of gravity, quantum mechanics and so on. But string theory has its own set of problems, dark matter being one of them. The problem is that the normal observable matter that can be explained by string theory accounts for only 5% of the matter in the universe, but dark energy accounts for 68%. Most string theory models cannot account for this. Recently, however, there have been many attempts to incorporate dark energy into string theory. Perhaps one of them will again subvert the question posed at the beginning of today’s video.
In late 2018, a team at Uppsala University in Sweden proposed a detailed revision of string theory. That is, our universe exists on the edge of an ever-expanding bubble. While it is true that most string theories are based in dimensions higher than the four dimensions we know (three spatial dimensions, one time dimension), what this revision proposes is that everything we know is actually some A spot on the membrane of something large.
So no one knows what’s going on inside this bubble, or what’s going on outside the bubble’s edge, or how many dimensions these unknowns could explain…but according to our proposed theory, dark energy seeps into ours from the wider bubble universe Universe, at least ultimately makes sense. Whatever it means for dark energy, it’s an alternative interpretation of reality that might make us an infinitesimal part of something larger.
Perhaps, then, we even hope to understand something greater. In this case, humans are just a small part of a small universe, on the edge of a bubble that itself might be part of something much bigger…we are essentially a proton in the grand concept, or electrons, or quarks.
If a proton could think, would we want it to know it was just a small part of a sports car? Or would one want an electron to understand that it represented a minuscule portion of a blade of grass? Obviously not, but we’d be in the same, unbelievable situation right now.
Ultimately, if the Universe is really structured like this, it would obviously shatter almost everything we think (or even conjecture) we know! In fact, our understanding of science is so wrong on every level that human knowledge may never recover from this truth. From now on, it’s going to be an existential crisis, a race to figure out some new, extra-dimensional laws of reality.
Fortunately, this is just a thought experiment. An interesting way to think about it, and a way to appreciate our place in the universe. Of course, our knowledge may prove to be limited, our views may be wrong… But even if all this is really subatomic insignificance from other perspectives, why does it matter ? We’re here now, so let’s enjoy our atoms!
The universe (UK: /k zm s/, US: /-mo s/) is another name for the universe. Using the word “cosmos” means viewing the universe as a complex and ordered system or entity.
Cosmology is the study of the universe, why it exists and what it means. Cosmology is a broad discipline that covers scientific, religious or philosophical aspects of the universe and its nature. Religious and philosophical approaches may include a universe within a spiritual entity or other matter believed to exist outside of the physical universe.
The word kosmos (Ancient Greek: κóσμoochen, Latin: kósmos) was first used by the philosopher Pythagoras to denote the order of the universe.  The Greek word σμoo means “order, good order, orderly arrangement” and is the root of many similar words. The verb κσμεν (κoσμεν) usually means “to arrange, to prepare”, but a particular one means “to order and arrange (combat troops), organize (army)”; also “to establish (government or regime)”, “to adorn, dress ” (especially women). Thus, kosmos has an important secondary meaning, namely “ornament, adornment” (compare: kosmokomes, “grooming hair,” and cosmetics).  In modern Greek, κóσμo developed the main meaning of “universe, the world” (the Universe, the world), that is, the meaning of “people” (gathering place).
The word became part of the modern language in the 19th century, when the geographer and polymath Alexander von Humboldt promoted its active use and included it in his five-volume treatise Cosmos (Kosmos, 1845 -1862), a book that influenced modern man’s overall view of the universe as an interacting entity.
fy: Chengmo, hia, the moon won’t wake me up, ch_m_ (early bed version)