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.

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.

Thinking about seasteading requires us to free ourselves of these broad political categories we're stuck with on land. People can make whatever community system they want on a seastead. What emerges will totally defy the broad categories we debate about now.

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.

Seavilization will be better than civilization, and we have nearly half the world's surface to discover it.

A lot of Pacific island nations are sinking below sea level; they could easily transition slowly into becoming floating nations.

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.