Eli5: On a production line, how do they make a car, plane or anything else be identical from one another without differences?
In: 6
Well, they don’t. They have tolerances. They can spend more time and use tools that were made more carefully to get tighter tolerances.
Every zero added to your tolerances adds a zero to your price, though. A huge part of the engineering process is to figure out just how sloppy they can get away with being.
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