This presentation explores the closely related concepts of progress, growth and development. The way we define these concepts REALLY matters. Our current economy only works when we sustain growth in terms of more, more, more...i.e. currently a "healthy" economy needs more & more people because that requires more houses, more "developed" land, more infrastructure, more consumers, more food, and the list goes on...
As the video below explains, there's a basic flaw in the growth-based economic model, numeric growth simply cannot be sustained: