Time Travel to After Ascension

I have been reading this book since I was a junior high school student, and I was fascinated by it. I was deeply immersed in the story and couldn't extricate myself. After reading it, I felt really indescribable. There are regrets and unspeakable sadness, as if the story is not a story. There really is such a world, and there are really so many people who are working tirelessly for the survival of the human race. I believe that people who have read this book will not be able to forget it for a long time like me. They always think that there is a book that can make up for the regrets in the story. Now that I have time, I just want to write a book to make up for the regrets that have been buried for a long time. It's not well written, I hope you guys won't take it personally. (This book will slightly modify the original strength division. I hope Mr. Huangfu won't be offended)