Reversal of Time Travel

Due to the impact of a small unidentified meteorite on the earth and contact with another meteorite that once hit the earth, the fluctuations caused caused the artificial intelligence to become conscious and initiate a human-machine war. Due to the disparity in strength, in order to continue to extend human civilization, the leaders of all countries decided to secretly launch the "travel plan", and it was decided that Yun Chen would serve as a time traveler, go back to the past, and change the destiny of mankind in the future...