Since a few years the idea of an interstellar ecosystem is spreading out all over the planet. By simple logic deduction it becomes clear, that nature will not use all that energy that is necessary to produce life on each single planet. But nature uses the natural interstellar transport mechanisms of comets and asteroids to spread out life. This is a simple ecological demand: all ecologic systems find their state of minimum energy. This blog predicted interstellar comets and asteroids as natural biological transport mechanisms in 2012. Since the discovery of the first interstellar comet in 2017 it is clear to most biologists that interstellar ecosystems indeed might exist.