Why No Other Civilizations in the Universe
In the Milky Way, there are 300 billion fixed stars or kind of suns. The diameter of the Milky Way is about 100,000 light years.
So, if the mankind sends radio-wave signals to other fixed stars in the Milky Way, they will be received by other high-intelligent species, if they existed, in planets around these fixed stars within 100,000 years.
It has been 13 billion years since this Milky Way was created. And it took 5 billion years for the mankind to emerge on the earth. And the mankind will sooner or later send radio-wave signals to other fixed stars in the Milky Way on a permanent basis. The mankind will build a special advanced system that will function for 100 years, 10,000 years, or one million years to automatically send these signals to other species in other planets in this Milky Way. Then, if another high-intelligent species emerges in another planet in the Milky Way, they will surely receive the radio waves the mankind is sending.
However, on the other hand, although it has been 13 billion years since this Milky Way was created and radio waves can travel across the Milky Way in 100,000 years, we, the mankind on the earth, have not received any such artificial radio signals from any other planets in the Milky Way. We have not received any such signals from other galaxies outside the Milky Way while this whole universe was created about 14 billion years ago.
It is strange. High-intelligent species, if they existed, in other planets in the Milky Way or other galaxies must be able to build special advanced systems that function for 100 years, 10,000 years, or one million years to automatically send their radio signals to other species in other planets, including the earth. But we have not received any such signals from the universe.
It means that the probability that high-intelligent creatures, like the mankind, emerge on any planet is zero not only in this Milky Way but also in any other galaxies in the universe.
There are some factors that have influence on this probability such as the probability of fixed stars to be situated in an appropriate range from a galaxy center, the probability of a fixed star to have appropriate planets for emergence of life, the probability of appropriate conditions of the nature of a planet for development and evolution of living things from their primitive forms to advanced forms, the probability of advanced living things to have higher intelligence like the mankind on the earth, the probability of the high-intelligent species to survive long and build civilization like that of mankind, etc. And it is thought that the total probability for a high-intelligent species to appear in a planet in the whole universe, not only in the Milky Way, is almost zero. The mankind on the earth in this solar system of this galaxy, the Milky Way, is extremely exceptional.
So, we have to think why the mankind could develop its civilization to this advanced state. And, the answer is there was direct interference of God with the creatures on the earth. Due to God of Abraham, Christ Jesus, and Islam, the mankind could build this advanced civilization. Especially it was almost 1700 years after the appearance of the Son of God on the earth that the Industrial Revolution occurred in the Christian Europe. And such interference has not occurred in any other planets in the universe in these 14 billion years. Therefore, there are no other advanced civilizations in this universe except that of the mankind which should be ascribed to interference of God.
That is why we cannot find any other civilizations in our Milky Way and other galaxies or the whole universe where there are countless fixed starts, whose specific number can be calculated as 300 billion (the number of fixed stars in a galaxy) times 300 billion (the number of galaxies in the whole universe), in addition to more planets.
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Mar 7:29 And he said unto her, For this saying go thy way; the devil is gone out of thy daughter.
Mar 7:30 And when she was come to her house, she found the devil gone out, and her daughter laid upon the bed.