Explore the compelling reasons why humanity should consider colonizing Mars in this thought-provoking 42-minute talk by Stephen Petranek at ng-conf. Examine seven potential existential threats to life on Earth, including asteroid impacts and the creation of hostile artificial life forms. Delve into the logistics of Mars colonization, covering transportation methods, living conditions, and the potential for terraforming the Red Planet. Discover why space exploration is poised to become Earth's biggest business and how quickly Mars colonization could progress. Learn about the challenges of sustaining life on Mars, including water extraction, food production, and shelter construction. Understand the potential impact of Mars colonization on world politics and human evolution. Gain insights into SpaceX's Mars rocket program and the long-term vision for human expansion beyond Earth.