Star Swap

This book is actually an imaginary story that takes place on the earth 200 years later. When resources are exhausted, how will humans on the earth survive. Because it is a short article of 80,000 words (eventually expanded to 100,000 words), I cannot cram in more things. I only talk about one thing, and that is what I saw after I came out of seclusion, and those people who gave up on the earth. Choose to leave or stay, choose to kill one person or kill a hundred people, this kind of trolley problem is left to several protagonists.