Observation No. 09
The spreadsheet is load-bearing.
Somewhere in most businesses there is a spreadsheet that holds more than it should. It began as a quick way to track one thing, then absorbed another, and another, until it quietly became the place the operation actually runs from. It has no real owner, no backup anyone thinks about, and one person who truly understands its formulas.
You can tell it is load-bearing by what happens when it breaks. A tab gets deleted, a column shifts, and suddenly no one can invoice, or schedule, or see what is owed. Something that was never meant to be infrastructure has become infrastructure, and its fragility stays invisible right up until the morning it is not.
This is not a failure of discipline. The spreadsheet grew because it was the fastest tool within reach, and it kept working just well enough to never get replaced. It is a monument to a real need that no other tool was shaped to meet.
An assembly reads that spreadsheet closely, because it is a specification in disguise. Every column is a thing the business needs to track; every manual step is a thing that could be carried for it. The humble file has already drawn the plan. The work is to build it something sturdier to stand on.