Hope Is the Projection of Intentions on a Horizon of Possibilities.This is a hopeful book. My purpose here is to develop models for sustainable enterprises anchored in sustainable communities in a market society of plenty. Meeting all of humanities’ needs in sustainable communities that do not overtax the natural environment is well within our capacity.Productive capitalism has succeeded in supporting an increasing standard of living with ever-decreasing hours of work. The reason we have hundreds of millions of retirees and university students is because we simply do not need their work. Conversely, financial capitalism requires scarcity to preserve the value of money. Scarcity is maintained by enormous waste.We live in a world of plenty that must be experienced as scarcity for the economy to function.We have all the resources necessary to support humankind sustainably. The dominant concern is this: Who will pay? Thus, sustainability is better understood as a challenge of the financial system, rather than of ecological resources.This book examines sustainability from the perspective of a median family of four in the United States. You will discover that at least 50 percent of take-home pay is expended on interest, either directly or indirectly. The money you earn is not yours; you rent that money. For every dollar you spend on your needs, another dollar is charged as interest for the privilege of using that first dollar. You are invited to examine your own family economics, your own struggles in our debt-money economy.All that extra industrious work to pay interest is the largest single component of our environmental footprint. Because that work goes to pay interest—not human needs—all that created value is wasted to maintain scarcity. Think of all the work and expenditures across society that do not support human needs. If we all worked only twenty hours a week, we would have enough.Imposing scarcity in the face of plenty demands considerable overhead in our enterprises, in our communities, and in our government. Overhead is a cost of distrust. If only a fraction of overhead work was directed into value-producing, needs-sustaining work, ten hours of work per week would be sufficient to meet all of humanity’s needs with a far-smaller ecological footprint.We cannot understand sustainability challenges through a single lens. Every aspect of human society is involved. Thus, this book draws on a great variety of disciplines to envision a coherent architecture for a future society of plenty. The Contents section conveys the scope of concerns and possibilities envisioned in that architecture, while the Glossary lists the many disciplines and models invoked as a basis for the proposed architecture. Architecture, not design.This architecture is a horizon of hopeful, practical possibilities. Our present economic system driven by debt-money is but a century old, while civilization is about 8,000 years old. Surely, this system is not the end game. In a world of demonstrable plenty, we can—and will—evolve toward a better economic and social system. A solid basis for hope does exist.My agenda is to demonstrate useful and practical possibilities for a hopeful human society based on sustainable communities enjoying productive plenty. Architecture—not design—because once hope and our ingenuity move toward that goal, many possibilities and designs will emerge. The architecture identifies a path that shows how productive organizations and communities can thrive in a market society of plenty.