owlsbooks Chapter 2172
Chapter 2172
Chapter 2172
Everything has a price.
The civilizations at the beginning of the universe were more terrifying than each other. They were a generation that developed freely without restrictions. Their growth rate was simply terrifying. They were even more powerful than their creators. These creators were the gods. The five gods and the Life Tribunal did not participate in the creation. They were born with the birth of the universe, but the initial scene of the universe was very different from the current universe.
Regarding the origin of the universe, the mainstream view now is the Big Bang. Interestingly, the term "Big Bang" was originally a joke. It was in the 40s, when scientists knew that the boundary of the universe had exceeded the Milky Way, and they began to think about what the universe was like, or what the state of the universe we see now was like before it happened. It's like a tree growing in an open space. From the timeline, the tree has grown up little by little from a small sapling. People who see this tree don't know why it grows here, but because they understand the growth process of the tree, they can understand the life cycle of the tree. If you become a microorganism on the tree at this time, even if you still retain the ability to think like a human, you don't know where you are at all because you are too small, and you can't see the whole picture of the tree. Imagine that because you can't see the whole picture of the tree, even if the microorganism you become is smarter than Einstein, you exhaust all your strength, but you still can't see the whole picture of the tree. Even if you gradually understand that you are on a tree, you can only guess the whole picture and understanding of the tree. In contrast, we are in the universe, just like microorganisms in a tree. Since we are in the universe, we cannot jump out of the universe, so the origin of the universe can only be guessed. Even the most serious scientists currently have only theories about the origin of the universe, not % certainty. It is for this reason that when a theory about the origin of the universe appeared, many scientists also disdained it.
In the 40s, Gamow and other physicists proposed a view on the origin of the universe - the theory of primordial nucleosynthesis.
This name sounds both awkward and abstract. The key point of the theory is that the universe was originally a mass, and then through expansion, space and time stretched into a piece. Some scientists do not agree with this view of expansion, such as Hoyle, who is also a physicist. Once, Hoyle was interviewed by BBC Radio. When he mentioned the theory, he joked that the evolution of the universe seemed to be a big bang. It was originally a sarcastic statement, but since then, the name of the Big Bang has replaced the previously awkward primordial nucleosynthesis. The Big Bang sounds very novel, but in fact it has the same purpose as the ancient Chinese view of heaven and earth. Before the Big Bang, the universe was a singularity. You can understand it as a mass of highly dense matter, in which all matter and energy in the universe are contained. At this time, looking at the records of Pangu creating the world by the ancient Chinese, it is directly said that the world is chaotic like a chicken egg. A chicken egg is an egg. This is the same as the theory of the Big Bang, which describes the predecessor of the universe as a mass and a point. In myths and legends, Pangu was conceived in the chaos of heaven and earth. After the heaven and earth split, the tall Pangu became all the matter between heaven and earth. In the Big Bang theory, the universe began to expand from a dense singularity, and the matter after the expansion began to form celestial bodies and galaxies. So this process coincides with the imagination of the ancients. The only difference is that the time and scale of the creation of heaven and earth understood by the ancients are smaller than the current scale of the universe. Pangu's day is one foot long, and he is 138 years old. In the Big Bang theory, the universe expanded from 1 billion years ago. The heaven and earth supported by Pangu are 1000 miles apart, and the boundary of the universe known to humans today is up to tens of billions of light years. However, it should be pointed out that the numbers in ancient my country are sometimes a kind of virtual reference, representing infinity or more. For example, nine can be understood as extremely large or infinite. Chicken eggs, singularities, dense masses of matter, etc., this is the early state of the universe. According to the Big Bang theory, in the expansion process after opening, it contains incredible energy. Even after the temperature cooled, its temperature was still as high as 1000 million degrees Celsius. Under the catalysis of this high temperature, some initial substances and forms of the modern universe began to appear. In this process, elementary particles quarks appeared, and then continued to expand 30 times. Then, quark particles began to be bound by neutrons and protons, and the universe continued to expand times. Then, protons and neutrons began to combine to form atomic nuclei, all of which were produced within one minute of the explosion. Then the universe continued to expand, and after years of expansion, atoms began to slowly appear. The space of the universe is only one thousandth of the size on the modern scale.
After the atoms appeared, they gradually condensed together, and then formed a large number of gas clouds. The gas clouds condensed together again and gradually formed stars like the sun. At this time, the universe continued to expand. When its scale reached 20% of its current size, the stars combined together and gradually formed the first galaxies. The expansion of the universe has not stopped at this moment. It has become infinite and still has no intention of stopping. When the scale is half of its current size, a large number of heavy elements are formed due to the action of stars, and these substances gradually form planets like the earth. The above is the process of the universe from singularity to explosion and then continued expansion, which is also the core of the Big Bang theory. The theory has been around for more than half a century. From being ridiculed in the early days, it has become the main hypothesis in the theory of the origin of the universe. Although theories and observations over the years have confirmed some of the correctness of the Big Bang, there are still many problems that cannot be explained. For example, there is no clear answer to the formation of galaxies. Moreover, even if the theory is reasonable in argumentation and research, it is still not a % definite answer. Because of this, there are other theories about the origin of the universe, and before the origin of the universe, there are naturally other states. At the beginning of this century, some scientists proposed a new model of the universe. The new theory believes that the universe has neither a beginning nor an end, but is in an endless cycle. Moreover, this cycle will not stop or end, it will continue forever. This new theory includes the Big Bang theory and believes that the Big Bang is not the beginning or the end of the universe, but only a transition between different stages of the universe.
According to this theory, the universe has no pre-initial state, or its pre-initial state is the form of the universe at different stages. This theory did not appear out of thin air, but was derived from the earlier string theory.
In 2020, Penrose, who won the Nobel Prize in Physics, is also the founder and supporter of the cyclic universe. If the universe is really in a cycle, that is, after a process has gone through, it will cycle to this stage next, then this is a bit like reincarnation in Buddhism. The difference is that the reincarnation in Buddhism is only aimed at life, while the cyclic universe theory means that everything in the universe is in a cycle. It is worth mentioning that the early philosopher Nietzsche also proposed the cosmology of eternal reincarnation. Since the universe is generated in a cycle and the state is just a form of different stages, then it has no starting point and end point.
In fact, both guesses are correct, but neither is complete.
The universe is indeed a reincarnation. Every birth of the universe originates from the Big Bang, which is also a reincarnation.
After billions of years of evolution, the universe may move toward a state, that is, heat death. From a physics perspective, heat death refers to a state in which all objects in the universe eventually reach temperature equilibrium, that is, all energy in the universe is evenly distributed, there is no temperature difference, no energy flow, and all objects reach the same temperature. In such a state, since there is no energy difference, there is no more energy transfer between objects, and the universe will stop working, which is heat death. The main reason for heat death is the increase in the entropy of the universe. Entropy can be simply understood as "disorder", a physical quantity that measures the chaotic or disordered state of a system. According to the second law, the total entropy of a closed system will never decrease, but will only increase or remain unchanged. Over time, the entropy of the universe will continue to increase until it reaches its maximum value, which is the state of heat death. For the significance of the universe, heat death represents the possible "end" of the universe. But this does not mean the "extinction" of the universe, but only that the universe has entered a state of dynamic equilibrium. In this state, although the universe still exists, it loses the flow of energy and becomes static and uniform. To be more specific, according to existing observations, the background radiation temperature of the universe is about 2.7K, which is the residual heat left after the Big Bang. Over time, this temperature will gradually decrease until it approaches absolute zero. When every part of the universe reaches this temperature, we can say that the universe has entered a state of heat death.
The universe, this infinite and vast existence, has been constantly evolving since the moment it was born.
About 138 billion years ago, a cosmic event called the Big Bang marked the birth of our universe. In this event, all matter, energy, and spacetime rapidly expanded from a very small, hot, and dense state, and the universe began its journey. In the primordial universe, the high temperature and high density allowed matter and antimatter to come together, constantly creating and annihilating each other. Over time, the universe gradually cooled and expanded. About 38 years after the Big Bang, the temperature of the universe dropped to a point where electrons and protons could combine to form hydrogen atoms. This event is called "recombination." From then on, light began to propagate freely in the universe, forming the cosmic microwave background radiation we observe today. Billions of years later, due to the uneven distribution of matter, gravity began to take effect, causing matter to gradually gather and form the galaxies, stars, and planets we see. Nuclear fusion in stars is the main energy supplier of the universe. They turn hydrogen into heavier elements and release huge amounts of energy at the same time. However, the expansion of the universe has not stopped. In fact, recent observations show that the expansion of the universe is accelerating. This is mainly due to the action of a substance that we still know very little about - dark energy. Dark energy opposes the gravitational pull of matter, pushing the universe to expand. What does this expansion lead to? First, over time, stars will exhaust their fuel, die and become white dwarfs, neutron stars or black holes. Subsequently, the distances between galaxies will become so large that we can no longer see them. On very long timescales, even atoms may decay. Eventually, when all the energy is evenly distributed, the universe will enter the heat death state described above, where it will become static and without any dynamic processes. This is the life cycle of the universe from birth to possible "death". When we imagine the universe after heat death, the first thing that may come to mind is a dead, cold "endless void". But what is the universe after heat death really like? First of all, we have to make it clear that "heat death" does not mean the "death" of the universe. Heat death describes a state where energy is evenly distributed and no work can be done. This means that the stars, matter and energy in the universe still exist, but their state is completely different from what we know now. The fate of stars: When the universe enters heat death, the vast majority of stars, planets, etc. have ended their life cycle. The star will become a white dwarf, a neutron star or a black hole. Although black holes are extremely stable, they will gradually "evaporate" and disappear over extremely long time scales due to the influence of Hawking radiation.
Energy state: In heat death, all energy is evenly distributed throughout the universe. This means there is no temperature difference, no energy flow, no light, only a uniform low temperature background.
State of matter: As the universe expands to such a huge scale, the distances between matter have become extremely far apart. Atoms and molecules may no longer be combined, but isolated and distributed in the universe. Furthermore, even these atoms may break down due to various decay processes.
Meaning of time: In such a state, time may lose its traditional meaning. Because there is no dynamic event happening, no object or event that can be used as a reference point, time is like standing still.
But even though the post-heat-death universe sounds cold and lonely, it is still an inevitable stage in the evolution of the universe. It reminds us that life, civilization, and the universe itself have their own life cycle, with a beginning and an end.
After witnessing the chaos in the early days of the universe, the Life Tribunal immediately understood that if life in the universe was allowed to develop freely, heat death might come early... You know, those civilizations that appeared in the early days of the universe were more wild than each other... God knows what tricks they would play.
So the Life Tribunal set up destiny and arranged everything properly, so that the time span for the universe to return to heat death can be extended as much as possible.
Finally, a variable appeared, which was the Earth.
It deviated from the plan from the very beginning... According to the original idea, life on Earth should have been sown by the gods, then grow, then be destroyed, be born and grow again, then be destroyed again... and the cycle continues.
But unexpectedly, an accident occurred from the very beginning.
The Life Tribunal cannot control everything... There is nothing it can do about it. After all, it is not the universe itself, so it does not care about some accidents. But I didn't expect... a moment of negligence would give birth to a civilized race like the Immortals.