I like the systemic approach taken in this article, and the idea of a zero-margin economy linkage to decentralisation makes sense, thanks for posting.
I think the analysis could benefit from more consideration of inputs and outputs though.
The energy input to our current system appears fundamental to the problems we see, namely profit driven extraction and combustion of fossil fuels.
This appears to be a fundamental structural element which sets how the rest of the system has to operate – scarcity for profit, (zero-sum vs zero-margin?)
It would be interesting to see how solar power might fit into and influence your analysis.