Even though it is impossible to grow the industrial economy indefinitely, not all the economy needs to grow. We have the option of balancing industrial efficiencies with social and even industrial inefficiencies in different sectors of the economy. The net result is an economy with many of the benefits of economic growth and a reduction of our ecological footprint.
"The lesson of history is, that if we define 'green' energy as energy that is more efficient and cleaner, then all technological energy innovations over the last 200 years have been 'green'"
Our civilization keeps encouraging greater efficiencies, but doesn't have an effective mechanism for actually taking advantage of those efficiencies. The result? Ever increasing efficiencies lead to ever more pointless lives and unsustainable consumption.
This book describes what our civilization needs to do: Take the efficiencies we gain in certain sectors, and poor the free people and resources into other sectors: healthier food production and social services. Instead of striving for greater "efficiency" in *all* areas of life, we need to rearrange the incentives so that the efficiencies that technology brings us are used to increase the quality of life for everyone.
It's basically an inevitable idea if we want to avoid a environmental and social dystopia, and this book provides compelling narrative on what needs to be done.