Demand and supply are the vocabulary of the economics of monetary capitalism. An industrial economic model that is so good (successful) at making stuff a whole industry almost as large has been created to help distribute (sell) the stuff. And that is where the supply chain finished, with a sale, OK some service contract tagged on to monetize a financial service commission.
In the abundance economy, lead by the digitialists, supply chains have not end, (nor beginning) they are all cycles, cycles of information creating new information that turn into the stuff we need. And really need, want, desire, necessities etc. etc.
Creation cycles are the new demand and supply.