Are You Afraid of Death?

The book is about a group of people called the Heinliners. They try to make an intergalactic ship called the Robert A. Heinlein. The idea was that, well, humanity got jettisoned from earth. So it's just now like you're puttering around. And there in that post-scarcity post-struggle world, you're not afraid of war or death. But at the same time there is a kind of existential lack of purpose.