It’s difficult for for the author to explain and describe so they will try to be blunt and true. Much of your lives (I am you), have directly to do with the economic stability of your time. It turns out we do not (yet) have a socially accepted measurement of this phenomenon. Many of our parents, family, friends, and relationships, have been very affected by the fluctuations of our currencies and our global financial system.
A sad phenomenon, but like a problem gambler (if such a phrase truly can have a definition), we most generally function on religious beliefs about what is the rise and cause of such instability.
How much and many of our relationships depend and depended solely on our financial stability. “We” think we might find an astounding correlation once we start to understand the true nature of our “circumstances”.