Thank you, yes I'm aware of their work. Steady state looks to be very attractive, although I have concerns regarding the use of non-renewable inputs to it. These resources deplete even in an a steady state economy, thus eventually the said economy ceases to be steady state and turns towards decline. I believe steady state, or homeostasis, is only possible by using renewable plant and animal produce solely, say by hunting and gathering or by a very low key permaculture type of agriculture. Since this is where we are headed anyway, steady state is what our future will look like.