That's the marvellous thing about seasteads; if a government fails, there's nothing much the people who live there can do about it. But if seasteads fail, they simply disassemble and go away.

The first seastead happened fifteen centuries ago. The result was the most beautiful city in the world, Venice. People who were sick of their violent governments fled to the water, where they built civilization on stilts. That startup society - a free city-state on the water - became so successful it dominated the Mediterranean for a thousand years.

People can leave seasteads, or people can choose them, and people can create new seasteads if they want. This fluidity will engage an evolutionary market process that'll allow a diversity of societies to emerge that will in principle be superior, simply because people chose them. Governments on land don't allow this fluid dynamic of choice.

If seasteads advance blue-energy technologies, they'll create blue jobs. Millions of poor people living under exploitive governments are looking for a better choice. Seasteads won't attract them without offering them better options.

Once you provide people with a platform to start their own country, every conceivable type of innovator reaches out to you with their own idea.

Americans are very mobile and move around and choose the communities they want. On the ocean people would be even more mobile and empowered to link up with people they enjoyed, and detach and move away from people they did not. Increasing choice is a way to foster fulfillment in people's lives. I choose my friends and I'd prefer to choose my neighbors too.

Nearly half the earth's surface is unclaimed by any country, so seasteads would be startup countries on the blue frontier. Patri Friedman is a Google engineer and theorist of political economy who realized that if society floated, it would completely change the nature of governance itself. If seasteads are modular and can be moved about, allowing people to choose new societies, we'd create a market of governance providers, competing to attract residents.