[ChuckMcM]

Apparently both authors would develop a better way to explaining and separating these things if they took some Systems Dynamics[1] courses. Everyone who has taken college level economics was taught that money isn't real (I mean the first money was owning a very large rock on a ledger where that rock might be at the bottom of the ocean. [2]) But what is absolutely real is a contract of labor or materials. Using numbers to allow you to trade contracts for wood and carpenters for a house and using tokens to represent those numbers is sufficient to create a more flexible market than just straight up barter.

[1] https://systemdynamics.org/

[2] https://www.npr.org/sections/money/2011/02/15/131934618/the-...