Need.

Design for human need creates new needs. Did you know you needed a Tesla when you were shopping for the Kia? Needs are forces in a network that create a ripple effect of imagination. The purchase of an iPhone creates the need for a phone case, and on it goes. The categories of need: minimal, fundamental, and instrumental (Thomson) emphasize interest over desire, constructing the concept of consumption as sustainable development.

Is need determined by choice or are we coerced into needing things through the system?