Art Brock & Ferananda Ibarra talk with Jim about the dynamics & characteristics of currencies, credentials, competence, reputation, the broad range of non-monetary currencies, relational-backed social currency, pros & cons of scarcity & measuring, time banks, how mutual credit systems work, financial collapses, fiat currency, speculative vs resource-backed markets, currency plurality, designing currencies, non-numeric currency, amazon ratings, and more.