In the lifeline of the universe, I keep my reality
Ever since humans have the ability to think, some problems have been bothering them. For example, "What is the nature of evil?" Or "What caused the Cambrian outburst?" Not to mention Freud's "What Do Women Want?" ".
But one of the big questions they most often ask is "what is all about?", what is the meaning of our existence, and is the concept of "we" not only relative to you, your neighbors, and your families, but also to the earth, the stars, and the universe?
In order to make themselves feel at ease, most of the time people do not think about this problem, only press it to the bottom of their hearts. After all, you still have appointments to go, deadlines to complete, and life to go on. Constantly questioning the meaning of one's existence, the energy expended and the disappointment endured is not a luxury that everyone can pay. It may be easier to entrust this question to a salaried theologian or philosopher.
So can astronomy help us solve our confusion? Not really. But it can provide a way of thinking to solve a problem, like the sea around Britain provides clues to Britain's history and can help us understand its ins and outs.
So what does it say in astronomy? At the beginning of the twentieth century, most people thought that the universe had always existed and would continue to exist. And we are just one corner, floating in the vast river of the universe. However, in his lifetime alone, Edwin Hubble discovered that the universe is expanding at a rate of 20 billion miles per year — the thinning fact that the distance between your lane and the nearby Virgo cluster is increasing year by year. In fact, as most readers know, recent astronomical measurements suggest that the expansion of the universe is accelerating.
But that's okay. What matters is an expanding universe that must have already begun. Of course, this is consistent with what most people think, which may explain why Hubble's findings are easier to know than Copernicus or Galileo.
So, someone will ask, what will happen after that? Our sun, as a new member of the milky way, will be more interesting as you get older than your least favorite uncle. In another 5 billion years or so, it will expand, swallow some of the inner planets, and evaporate everything interesting about our world. Our descendants (assuming we have) will move to another, better place, and traces of our existence, like photographs, artifacts and the like, will be exhibited as artifacts in a museum called Earth: Once Upon a Time" in the future.
They can do it several times before they run out of power. After all, most stars are older than the Sun, and the surge in the number of stars is undoubtedly over. The Milky Way is turning gray (although it is actually turning red) and the stars are disappearing. In about 100 billion years, the milky way's once-gleaming arms will fade and be replaced by sun-sized slag of carbon, black holes and stationary neutron stars, the remains of 100 billion silent stars.
The vitality is gone, and the decay is inevitable. In chaotic encounters, planets will eventually be stripped from the corpses of the suns of the past, and galaxies will slowly disappear due to the ejection of contents. Even massive black holes will one day disappear, and their mass will increase to the inert and extremely cold fog of the universe.
The universe will be obscured by the eternal night and turned into a graveyard of dead silence.
The best outcome we can deduce from the measurements is that this dim scene will unfold endlessly. There is no reversal, and there is no great collapse that restarts the cycle. The universe will only continue to expand and thin in darkness, monotony, and dullness.
We can therefore imagine a grand picture: the universe began with a moving point of light a hundred million years ago, and then ended in endless ruins. Our work—our poetry collections, our science, our tenderness, our rock 'n' roll, and so on—will all be silent and gone. The death of the universe is not only long-lasting, but also eternal. We now find that on the lifeline of the universe, the initial short and bright bursts are not only insignificant, but extremely short.
A short breath, a quick collision,
Given our smallness, and the fact that there won't be an inheritance in this universe, it's easier for us to choose to live in the moment (just like your cat). Maybe thinking about why we're here is useless is nothing more than a crazy temptation. On the other hand, perhaps one day, either by our own efforts or through the wisdom given to us by other undetermined creatures of the universe, we will learn something to change this hopeless scene.
Freud said, "Anatomy is destiny." "His theme is women, but it could be the whole universe.
The Great Rift: The new theory ends the universe by crushing everything
BY: Seth Shostak
FY: Zhou Langyue
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