On 7 December 2010, in a hushed San Francisco auditorium, a former Google engineer sketched out the future of humanity. From behind a lectern, Patri Friedman – grandson of the free-market economist Milton Friedman – laid out his plan. He wanted to transform how and where we live, to abandon life on land and start a new city in the middle of the ocean. Friedman called it seasteading: “Homesteading the high seas”, a phrase borrowed from Wayne Gramlich, a software engineer with whom he’d founded The Seasteading Institute in 2008, helped by a $500,000 donation from the PayPal co-founder Peter Thiel.
In a four-minute vision-dump, Friedman explained his rationale. Why, he asked, was an advanced country still using systems of government from 1787? Government, he believed, needed an upgrade, like…