> [!tldr] To make cars faster, the manufacturing gurus learned to make tolerances *tighter* Henry Ford is synonymous with the concept of the "Production Line". His employee, turned competitor, was known for making manufacturing *faster* by turning out parts with tighter tolerances, [[Six Sigma|lower variability]]. Each machined part would be interchangeable with each other machined part. You were no longer custom-fitting individual instances of hardware to match the bespoke one-off [[Keying]] of bumps and valleys of other parts. This is a form of "[[Slow is Smooth, Smooth is Fast]]". It's also a form of [[Dependency Chains are the Victim of Statistics]]. It's a form of [[Interface Object-Oriented Definition|Interface-orientation]]. This thought also made me appreciate [[Simplicity]] from a slightly new angle: [[Tolerance stackups are easier with fewer things on the stack]]. **** # More ## Source - [[Freedom's Forge]]