The – Japanese National Institute of Population and Social Security Research – is the go-to place for understanding demographic trends in Japan. The latest revisions to the population estimates (as at 2023) show that the current population of 125.5 million will shrink to 96 odd million by 2060 and then 87 million a decade later. There is a rapid decline after that expected. The male population is shrinking faster than the female population. Much has been made in recent weeks of Japan’s slide down the GDP world ranking. First, China overtook it into 2nd place a few years ago and now Germany is moving into third place. India is projected to push Japan out of fourth place next year. Some have referred to this as “Peak Japan” with the population dynamics likely to push the nation further down the GDP table. There is a lot of anxiety among policy makers here about that ‘fate’. My perspective differs. In fact, I think that the challenge is not to solve the population decline but rather to work out ways to live well with a smaller population, and demonstrate to the world how a planned degrowth strategy can be achieved with minimal disruption to material security.