This book presents a comprehensive analysis of the human species, Homo sapiens, arguing for its inevitable extinction based on patterns observed in other species throughout Earth's history. It traces the lineage of hominins, highlighting the unique adoption of bipedality and the subsequent evolution of Homo, leading to the sole survival of Homo sapiens. The author points to the development of agriculture as a turning point, facilitating rapid population growth but also introducing vulnerabilities to disease and reliance on limited resources. Ultimately, the text suggests that current environmental crises and declining human fertility are signs of this impending decline, proposing space colonization as a potential, albeit challenging, avenue for long-term survival, but emphasizing the critical timeframe for such a monumental undertaking.