Planets that are at the optimal distance from a star are gardens. Nature makes the most out of existence. There is no shortage of these kinds of planets given the billions of stars with that potential. There is no shortage of time for nature top produce within itself, free will bearing beings. Not only that, a single planet like our own can have many cycles that produce such beings. There are non-human beings besides humans and some of them were produced here on Earth way before our cycle. I've had encounters with such beings, plural, and not just one race.