Summary:

- The article discusses the rapid population decline in many Japanese cities, with some cities losing up to 30% of their population over the past decade.
- It explores the challenges this demographic shift poses for urban planning and infrastructure, as cities struggle to maintain essential services and facilities with a shrinking population.
- The article highlights potential solutions, such as repurposing vacant buildings, promoting remote work, and encouraging migration to smaller cities, to adapt to the changing population dynamics in Japan.