More Magic
A switch on the oldest rack is labeled, in pencil, magic / more magic — and it's wired to a single pin that can't do anything. Echo flips it to prove the nothing. Root already knows what happens, because he watched a man flip it the week he started.
The thing labeled “does nothing” is doing the most. That's why no one dares touch it.
There was a switch screwed to the side of the oldest rack, with two pencil labels gone grey with age: magic, and below it, more magic. It was in the more magic position.
Echo found it during the audit and could not let it be. She traced the wire. It went to one pin. One. A switch needs two to do anything; one wire is a switch wired to nothing. "It's decorative. Someone's joke. I'm logging it for removal."
"Leave it," Root said.
"It is not connected to anything. It can't be. It is electrically a paperweight."
"I know what it is." He didn't look up. "I'm telling you to leave it where it is."
She did not, because she was thorough, and being thorough she flipped it to magic to confirm the nothing — and the floor went dark. Not the rack. The floor. Every machine on it, at once, the way a held breath ends.
In the quiet, under the UPS alarm, she put it back to more magic, and the floor came up again, ashamed of itself, one fan at a time.
"The one wire goes to ground," Root said into the noise, as if finishing a sentence from years ago. "Which is also nothing. Two nothings, and the machine believes in them so hard it dies when you disagree. A man flipped that the week I started. He wanted to prove it couldn't matter. He proved it could."
"What does it actually do?"
"I have no idea. Neither did he. Neither did the man who wired it, by the end." He finally looked at her. "You walked the whole floor today. The only part you couldn't leave alone was the part with a label begging you to. The small thing nobody guards is the thing holding the door."
In an old system the thing that looks like it does nothing is often doing the most — and the documentation died with whoever wired it. The MIT folklore switch (Guy Steele / the Jargon File) was labeled magic / more magic, ran a single wire to ground, and crashed the PDP-10 when flipped. Impossible, and true. You keep such things because they work, not because you understand them.
Inspired by A Story About ‘Magic’ (Jargon File).
If one is not extremely careful, somebody may come up from behind and strike. Misfortune. At certain times extraordinary caution is absolutely necessary. But upright and strong personalities who are conscious of being in the right disdain to hold themselves on guard because they consider it petty. This self-confidence deludes them. There are dangers lurking for which they are unprepared. Such danger is not unavoidable; one can escape it if one understands that the time demands attention to small and insignificant things.
The figure. ䷽ Preponderance of the Small (Xiǎo Guò), line 3 changing → ䷏ Enthusiasm (Yù). "The time demands attention to small and insignificant things; the strong personality who disdains to be on guard is struck from behind." Echo disdains the silly switch; the floor strikes.
The reading. The most dangerous part of any system is the part everyone agrees does nothing. Respect the load-bearing nothing, or meet it the hard way.
Department: Operations (運)