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.

Seasteads are a technology for anybody to form an alternative community based on their unique values - for communities to organize themselves however they want. Seasteads are their chance to demonstrate their vision can work. All that matters is that people can create, join, and leave seasteads voluntarily. As long as people can choose among seasteads, the best ways of living together will prosper, and the ones that people don't like will fail.

Seasteads cost money, and if you want to succeed as a Seastead you have to find ways to attract people to move there. If I was a billionaire I wouldn't want to move to a seastead, but if I was a member of the bottom billion, most of whom want to leave their dysfunctional governments, I might want to move to a seastead.

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.

I'm a novelist and science writer. I wrote a book about human impacts on marine mammals caused by agricultural drainage of nutrients on our coasts, and another book about evolution. Seasteading captivated me because it incorporates both evolution and environmental restoration.

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

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.