Re: Infinite Economics
Economic growth is a metaphysical quantity and so is not likely constrained by a finite planet.
It may, or may not be thus. It does arise, however, from economic activity, which in the real world depends on the consumption of physical resources, such as coal, oil, minerals, cotton, wood, energy, etc. which are all of finite supply, to a greater or lesser degree (for example most metals are recyclable, but you'd be hard pressed to recycle coal once it has been burned, and all recycling consumes other resources such as energy).