This requires far too much careful manual bookkeeping to ever work at scale. People would never be able to manage dozens (let alone hundreds or thousands) of tr

This requires far too much careful manual bookkeeping to ever work at scale. People would never be able to manage dozens (let alone hundreds or thousands) of trust relationships, especially when each decision might end up being rather important, financially speaking. It would be a constant cognitive tax that I can't imagine anyone paying. This one of many reasons that good money is fungible and completely interchangeable. It doesn't matter where your balance came from -- it can be used just the same. One other big concern. I think proposals of this nature run a dangerous risk of linking financial associations too tightly with social associations. Becoming someone's friend shouldn't require vetting their long-term financial stability right off the bat.