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
etc.
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.
