無人地球：全面改寫經濟、政治、國際局勢的人口崩潰之戰

The book presents a compelling case for demographic shifts, but I'm curious what sparked the idea to focus on this topic now. Was there a particular event or trend that motivated this deep dive?

The idea that declining populations could lead to economic stagnation or upheaval made me think about the stability of our current systems. How do others interpret these future possibilities?

The book covers a global picture, but I wonder what guided the choice of specific case studies or data points. Were there particular regions they felt more connected to or more critical in their narrative?