Money is such a gamechanger invention, demonstrating an unspoken mutual agreement between users that it represents real goods or services, that we are prepared to accept it at face value even as manipulators in public and private finance siphon off profits from transactions.

Bartering limited cooperation in economic activities to very simple deals.  Once some symbols agreed as representing a good or service was introduced, the chains of supply and demand spread

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, enabling new scales  of development, and more leverage into rearranging the atoms on Earth.