On the night of November 30, 2021, when I finished writing these words, I felt very complicated. From the beginning of the book, I have completed a novel of 1.6 million words in a full year, a year. To be honest, this was something the author had never expected before writing.

The whole book is roughly the author's thinking about the future era. He filled in all the pits that should be filled, and the reasons for the system were finally revealed. Finally, the second law of thermodynamics and the irreversible increase in entropy explain the ultimate problem of civilization. The subsequent one must be a war of fire until it reaches the peak of the universe, and then perhaps another fateful cycle, until the next Cheng Xiang truly understands the entire universe thoroughly and truly transforms the universe into a paradise for mankind.

When I finished the book, I would like to thank my editor A Fei, and to my friends who really like this book. Without your support, this book will not be the present.

The biggest gain of persistence this year is to meet so many friends who like and support the author.

Another gain is that the author feels that he has made great progress.

I hope that in the next book, I can bring you more excitement.

Thank you for your support, thank you.
Chapter completed!