Echo of Boötes

Introduction to the novel "Echoes of Boötes" A gravitational wave signal was emitted from the Bootes void, traveled through the universe for 700 million years, and was received by humans in the 24th century. Decoded is the entire history of an ancient civilization, as well as three last words: "Symbiosis is the best option. Don't repeat our mistakes. We are gone. You are still here. Be good." This civilization is called Guangyi. They exist as light and waves in resonant networks connecting thousands of galaxies. After billions of years of prosperity, the internal division triggered a phase change across the entire universe, and the entire star field turned into nothingness. On the eve of destruction, the wise men launched millions of comets carrying seeds of possibility into the depths of the universe. One of them arrived on the earth 3.5 Billion years ago and started life. Human beings are the offspring of sowing. At the same time, scientists discovered the same hidden sequence in the DNA of every life on earth. After deciphering it, they learned that they also stored the entire legacy of civilization in a black hole on the edge of the Boötes void. The key is on the planet next to the black hole. Only those who pass the three-layer test can get the key and unlock the legacy. There are also star maps and wormhole coordinates leading to that planet. Five astronauts were selected to go and be tested at the edge of the black hole. Not to prove wisdom, but to prove human beings' willingness to sacrifice for each other in the face of differences. More than four billion years of waiting, just for an echo.