I think it's wrong to assume that the economy, with the cash transaction at the heart of it, is somehow an immortal or god given / evolutionary design. Imagine

I think it's wrong to assume that the economy, with the cash transaction at the heart of it, is somehow an immortal or god given / evolutionary design. Imagine if it was replaced with a smart-card where your transaction had a programmable, algorithmic component to it. Now all of a sudden the system can become a lot more creative, and even carry a 'vote' like characteristic that will survive multiple successive transfers.