The visioneers: how a group of elite scientists pursued space colonies, nanotechnologies, and a limitless future

In 1969, Princeton physicist Gerard O'Neill began looking outward to space colonies as the new frontier for humanity's expansion.

A decade later, Eric Drexler, an MIT-trained engineer, turned his attention to the molecular world as the place where society's future needs could be met using self-replicating nanoscale machines.

This book tells the story of how these scientists and the communities they fostered imagined, designed, and popularized speculative technologies.