This book shows how mainstream economic theory is fundamentally flawed. It shows how the expectation for endless growth is so deeply ingrained into what we expect the future to be that we do not even question the assumption. But this work, rather than follow an ecological path to explore limits to growth, is an “inside job” that shows that when modern economic growth theories are decoupled from assumptions that have no basis in how the real world is developing, but are, for the most part, mathematical conveniences applied for the sake of “stability”, then the long-run economic outcome is no longer capitalism. Decision makers assume that changes today will lead to predictable and/or reversible outcomes. This is a myth. There are fallacies throughout the assumptions of predictability, reversibility, and endless growth. When reasoning is based upon a flawed foundation, bad choices can appear reasonable. This work shows that the future is not what it is supposed to be.