At Crowd Foresting, we always receive queries regarding the lifespan of a Miyawaki forest. To our knowledge, right now, the lifespan is fifty years, as it was started only fifty years ago. But we can say that the life of Miyawaki forests is similar to that of any other natural forest. Due to its healthy and thick trees, they will last as long as other forests last. And all those forests simulated by Prof. (Dr) Akira Miyawaki are still surviving without any damages.