The speed of light is the fastest known speed so far, and the laws of physics tell us that all objects with rest mass in the universe can only move infinitely close to the speed of light at most, but can never equal or exceed the speed of light. This is because, as the speed of an object gets closer and closer to the speed of light, it will become more and more massive, and more and more energy will be required, eventually reaching infinity. This is known as the relativistic mass-energy equation, which tells us that mass and energy are equivalent, and that the speed of light is the coefficient of conversion between them. Therefore, for an object to reach the speed of light, an infinite amount of energy is required, which is impossible. But what happens if we assume that human motion can exceed the speed of light? This is a very interesting and controversial topic, and scientists and science fiction writers alike have speculated and hypothesized about it. In this issue, I will summarize three possible outcomes based on some theories and assumptions, so let's take a look.
Get in touch with a more advanced cosmic civilization
The universe is a vast and mysterious place, containing tens of thousands of galaxies, each of which in turn contains hundreds of millions of stars and planets, some of which may be suitable for life. According to the small probability event, with the support of the huge number of universes, it is very likely that there are more advanced civilizations than human civilizations, they may have mastered the faster-than-light technology, can travel and explore freely in the universe, or they may have discovered the existence of human beings, but for some reason, they have not contacted us. If human beings can also exceed the speed of light, it will be possible to carry out interstellar travel and contact with higher cosmic civilizations, so as to obtain some unprecedented knowledge, technology, and wisdom, so that human civilization can be further developed and improved. Of course, this is also a double-edged sword, because we cannot predict the purposes and attitudes of extraterrestrial civilizations, which can be friendly or hostile.
If we can meet friendly advanced civilizations, then human civilization can be further developed and learn from their technology and culture. We can build a friendly relationship with them and explore the mysteries of the universe together, which will be the greatest leap in human history. However, if we encounter a hostile advanced civilization, then human civilization may be wiped out, and they will regard it as a lower life, enslaved or even exterminated by them. The universe is also the law of survival of the fittest, and high-level civilizations may invade, plunder, or experiment with low-level civilizations. It would be the worst nightmare in human history. So, if we want to go beyond the speed of light, we must be well prepared to improve not only our technological level, but also our moral level.
Go back in time
When human speed exceeds the speed of light, light will turn from virtual to real. The light around us will gradually change from a virtual image to a physical picture, and the content of the picture is the events we have experienced in the past. This is because light is an electromagnetic wave and it takes a certain amount of time to travel through space. When we look at the stars in the sky, we see what they used to be, because the light they emit takes millions, if not billions, of years to reach our eyes. In the same way, when we see objects around us, we see them as they used to be, but at very short intervals that are negligible. But when our speed exceeds the speed of light, we catch up with the pace of light, and even exceed it, so that we can see the history of light, which is our history. We are like the audience of a time movie, silently watching our past on the "movie screen".
It sounds interesting and tempting, because we can re-see some people and things that we have forgotten or missed, maybe our childhood, maybe our lovers, maybe our regrets. We can get some joy from it, some emotion and some inspiration. But we can't change the past. The past is the past, and no matter how hard we try, we can't change the trajectory of events. The space-time order of the universe does not allow anyone to tamper with the past or the future, and the past has become history and has been recorded by time and space. If we try to change the past, we may trigger paradoxes like the grandfather paradox, that is, if we go back in time and kill our grandfather, then we will not be born, then we will not go back in time, then we will not kill our grandfather, in either case, it will lead to some logically unexplainable result. This leads to an infinite loop and paradox. Therefore, it is impractical to try to change the past or peek into the future by traveling through time.
Enter a higher dimensional space
The space we humans are in now is a three-dimensional space, and we can perceive length, width, and height, and these three directions make up our spatial coordinate system. However, we cannot perceive time, for us, time is a one-way flow, we can only move from the past to the future, and cannot be reversed or stopped. However, physicists believe that time is actually the fourth dimension of space, constituting a four-dimensional space-time, and that we are simply unable to observe it directly due to our limited perceptual abilities. If human beings exceed the speed of light, it is very likely to enter the four-dimensional space-time, and in this space-time, human beings can not be bound by time, which is a new realm for human beings, and we can freely choose the time we want to go, whether it is a certain moment in the past, or a certain moment in the future, or a parallel moment. We can explore different timelines as we like, see different possibilities, and experience different lives. Time is no longer so important to human beings, we can swim in the long river of time, enjoy the beauty of time, or we can choose in the fork in the road of time, and create the miracle of time. At the same time, it is possible for human beings to reach the point of mythology, because we can control time, we can even create time, we can be the master of time, we can also be the creator of time.
Of course, these results are based on a number of theories and assumptions, and there is currently no experiment or evidence that humans are able to exceed the speed of light, or that these things will happen after exceeding the speed of light. These are our imaginations and speculations, and maybe one day, we will be able to verify these ideas, and maybe never. However, this does not prevent us from exploring and thinking about this topic, because it is the embodiment of human curiosity and creativity, and it is also the driving force for human progress and development. Ask you in front of the screen, what will happen to human beings once they exceed the speed of light? Welcome to one-click three-in-a-row, that's all for this issue, thank you for watching, I'm exploring the universe, we'll see you next time.