SEPTA Bus Test
SEPTA Bus Test
The bus comes down Market Street at predictable intervals.
You know this. You’ve waited for it.
Here is the logic your colleagues are running:
If I write it down, someone else could do my job. If someone else could do my job, I am replaceable. If I am replaceable, I may be replaced.
Therefore do not write it down.
This is not paranoia. In places where it has been true enough often enough it becomes reflex. You don’t develop that fear from nothing.
Here is the competing logic:
The undocumented expert is indispensable right up until they’re gone. At which point they are a liability they can no longer fix.
The Cryptkeeper has seen both.
He has read the channel records of teams that lost the person who knew. The three-AM messages asking where the config lives. The week of archaeology before anyone could deploy. The grief that had no name because it was grief at the system’s loss on top of grief at the person’s loss.
The bus doesn’t wait for you to finish the runbook. The bus is not unkind. It’s just punctual.
But the zero-sum feeling is real. The Cryptkeeper doesn’t pretend otherwise.
When you write it down you are giving something away. The mystery. The irreplaceability. The feeling of being the load-bearing wall.
And the thing you get back is intangible — the peace of knowing that if something happens to you the people you’ve worked with for years won’t have to pay the price.
That’s not a small thing. But it doesn’t feel as big as the thing you gave away.
The economy of care is not efficient.
The person who worries most about this is the one whose runbook is shortest — not because they’re careless but because they are the runbook, and writing it feels like writing themselves out of the story.
The Cryptkeeper has a name for this.
Not the SEPTA Bus Test. Not Runbook Debt.
The last generous act.
What you leave behind when you can’t leave anything else. The note that is enough. The configuration that survives the week. The team that doesn’t have to grieve twice.
Write it down.
Not because you’re replaceable. Because you’re not — and the people who know that deserve to have something when the bus is on time and you’re not there to tell them where the config lives.