Money has three roles:

  1. Medium of Exchange → Money (Medium of Exchange)
  2. Store of Value → Role of Money
  3. Unit of Account → Balance Sheet

Properties Required in Physical Money

  1. Divisible ⇒ numerical money. You can divide it into as much as reasonable in transaction
  2. Scarce ⇒ gold/silver is often used
  3. Desirable ⇒ again, gold/silver.
  4. Durable ⇒ metallic goods

See the Gold Standard for more information

Sociology Perspective:

See (Article) Minimum Viable Superorganism Melting Asphalt

Money is industrial-grade prestige status