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I wonder if it's like a No 2 pencil, where no single individual is capable of building one on their own. The skills, materials, and machinery are spread across numerous entities.
I assume a No. 2 pencil is just made by adding together two No. 1 pencils
You'd think that but it's actually made by splitting a no. 4 pencil in half
Wrong. They cut a No. 4 pencil in half.
But how do you make a No. 4 pencil?
They mash two No. 2 pencils together.
Almost there. They do the cut longways, then heat the halves until theyre malleable and then roll them into a circular shape. Then it's off to the hexagonal press to give them the signature flat edges.
No, you race the two No. 1 pencils and, whichever comes second, well..
I have been in automation for many years including food. Many people know the exact recipe. They most likely have the exact setpoints and quantities under version control.
Fun tidbit, managers at Starbucks plants are only able to change values slightly, going beyond a small variation requires override by quality department. It is literally built into the machine software.