There is no such thing as a fully open or fully closed system.

· Bits and Bobs 5/26/25
  • There is no such thing as a fully open or fully closed system.
    • Open vs closed system is a matter of perspective.
    • A fish tank is a closed system... but part of an open system (the human who constructed it and puts food in).
    • An ocean is an open system, but effectively closed at the level of the planet.