Nick Bostrom's earlier book Superintelligence shaped a great deal of thinking about AI risk. This one asks the opposite question. Suppose everything goes well, technology solves scarcity, disease, labour and every practical problem. What is left for humans to do, and what would give life meaning when nothing is necessary? It is a genuinely neglected question, treated here with real philosophical seriousness, and packaged in a form that will test the patience of most readers.
The core problem is worth stating because it is more interesting than it sounds. Much of what people find meaningful is bound up with necessity, difficulty and consequence. Work matters partly because it must be done. Skill matters partly because it is scarce.
Remove the necessity and the scarcity, and it is not obvious what remains, or whether a life of pure leisure is one anybody would actually want. Bostrom distinguishes carefully between different kinds of purpose and examines which survive the removal of constraint, and that analysis is the valuable part of the book. The rigour is real. This is not speculative futurism, it is philosophy, engaging with questions of value, hedonism, autonomy and the structure of a good life with the apparatus you would expect from an academic philosopher.
Readers who enjoy that will find genuine substance, and the treatment of why boredom and purposelessness are not trivial objections is better than anything else I have read on the topic. The structure is the biggest obstacle and I struggle to defend it. The book is presented as a series of lectures interspersed with fictional interludes involving talking animals, dialogues and various framing devices, and the effect is to bury a serious argument inside a great deal of ornamentation. What could have been a tight two hundred pages is instead a long and meandering read, and I do not think the playfulness earns its cost.
Many readers will abandon it, and the ideas do not deserve that outcome. Length compounds the structural issue. There are extended sections where the argument is not advancing, and a reader looking for the core content has to work to extract it. A ruthless edit would have produced a better and more widely read book.
The premises will lose readers early. The book assumes a state of technological maturity in which essentially all practical problems are solved, and many readers will consider that premise implausible enough that the subsequent analysis feels like an exercise in imagination rather than an argument about the future. That objection is fair and it is also somewhat beside the point, because the philosophical question about meaning without necessity is interesting independent of whether the scenario arrives. Practical relevance is close to zero and the book does not pretend otherwise.
Nothing here will help you build a system, evaluate a model or make a decision about your work. It is philosophy, aimed at readers who want to think about a question rather than solve a problem, and judging it by practical criteria would be unfair. It does mean that for most people working in this field, the time is better spent elsewhere. Three point three.
A serious and unusual philosophical work on a question that deserves more attention, wrapped in a structure that actively obstructs it. Recommended for readers with a taste for philosophy and patience for indulgence, and hard to recommend to anyone else.