In those meetings, I learned that even economic diagrams needn’t be linear. Ours was a nest of concentric circles, and an enterprise was measured by its value to each circle, from the individual and family to the community and environment. I realized that Rebecca and her colleagues were trying to do nothing less than transform the System of National Accounts, the statistical framework here and in most countries for measuring economic activity. For instance, the value of a tree depends on its estimated value or sale price, but if it is sold and cut down, there is no accounting on the debit side of the ledger for loss of oxygen, seeding of other trees, or value to the community or the environment. This group was inventing a new way of measuring profit and loss. By the end of our days together, I understood economics in a whole new way. A balance sheet really could be about balance.