Seasteading began as a thought experiment: imagine a sovereign Libertarian utopia in international waters, far from the reach of any government. Over the last decade, this dream has inched closer and closer to reality. But establishing a completely independent floating city in the ocean isn’t simple–or cheap. The Seasteading Institute compromised a little on its independence and instead sought a partnership with an established nation that could support their project while having a very light hand on regulations. The idea grew out of and caused a stir in Silicon Valley, was widely reported in the media, and Marc Collins, a former government minister in French Polynesia, saw an opportunity for symbiosis. The Seasteading Institute needs internet connectivity, energy solutions, food, and government permission to establish themselves in the South Pacific Ocean, while Polynesians are very interested in the technology needed to build floating cities—a concern at the front of their minds as sea levels rise—and in economic growth. And so Collins co-founded Blue Frontiers, a world-first company that builds societies on the sea. But who will live on this brand-new floating nation in the South Pacific—and how? Marc Collins explains the feats of engineering that are making this vision a reality.