Science Fiction: the End of Human Civilization at the Beginning

In the end, mankind still failed to pass the threshold of the big filter and developed controllable nuclear fusion to break through the limitations of energy shortage. On January 1, 3600 in the human calendar, New Year's Day, with the explosion of the last nuclear bomb, behind the rising mushroom cloud, the earth was completely reduced to ruins, and human civilization... Came to an end. In 2020 AD, Chen Feng participated in the Interstellar Traveler Project and set out in 2030. He sailed in the long deep space for 1570 years and finally died due to exhaustion of fuel. However, at the last moment before his death, an inexplicable fluctuation hit him, bringing him back to the days before the college entrance examination. This time, history will not repeat itself. The Great Filter will no longer be the wall blocking human civilization. Human civilization will no longer fight among itself, and the nuclear bomb will never explode. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.