Quantity of Quality → Planned Permanescence

Physix quantifies quality with color. Quality = Color.

Quality over time can be expressed as I x T

Using the year as a unit of time, the orders of magnitude of quality can be expressed efficiently.

10-1y = ~1 month

100y = 1 year

101y = 10 years

102y = 100 years


Convenient abbreviation: order of magnitude in years as the index of quality.

Manufacturing, warrantees, etc. can be categorized by their expected durability.

A common metric yields targets for expectation and performance.