'Post-Earth.' This show is about a 'post-Earth' era. At one point we thought such a thing impossible, but as the zombie apocalypse looms ever closer, we can begin to imagine one (not that said apocalypse is a part of this series). What we have learned from this series is that even in a post-Earth era, humans are essentially the same. Even once we leave this planet we will face the same struggles in terms of power, politics, sex, and religion that we have now. It's almost enough to make you hope that the zombies get you.