Exercise 2: Why Failure-Path Questions Draw Out the Most Tribal Knowledge — Possible Solution ==================================================================== WHAT THIS CHAPTER SAYS ------------------------------ Per this chapter, asking "what would you do if X specific thing went wrong" "draws out troubleshooting and rollback knowledge ... which tends to be the most tribal knowledge of all, since the failure paths are rehearsed far less often than the happy path." WHY REHEARSAL FREQUENCY IS THE KEY VARIABLE ------------------------------ The happy path of a familiar task gets performed constantly - it's practiced so often that, per Exercise 1's own reasoning, much of it eventually becomes automatic and hard to articulate, but at least it's executed regularly and its shape stays fairly consistent. Failure paths, by contrast, are only triggered when something actually goes wrong - which, for a well-functioning system, may be rare. An experienced technician might genuinely only encounter a specific failure mode once every few months, or even less often. WHY LESS FREQUENT REHEARSAL MEANS LESS LIKELY TO BE DOCUMENTED ANYWHERE ELSE ------------------------------ Something performed constantly is more likely to have been noticed, discussed, or informally written down by someone at some point, simply because it comes up so often. A rare failure-path response is far less likely to have ever been captured anywhere - it may exist purely as one person's memory of how they handled it the one or two times it actually happened, with no institutional record at all. WHY THIS MAKES FAILURE-PATH KNOWLEDGE BOTH RARER AND MORE VALUABLE TO CAPTURE ------------------------------ Precisely because it's rehearsed less often, failure-path knowledge is simultaneously the hardest to reconstruct from scratch under pressure (nobody remembers doing it every day) and the least likely to already be written down somewhere. That combination - rare, unrecorded, and hard to improvise correctly under pressure - is exactly what makes it worth deliberately drawing out through direct questioning, rather than assuming it will surface naturally the way well-practiced happy-path knowledge more often does. WHY THIS WORKS AS AN ANSWER ------------------------------ It explains the specific reasoning (rehearsal frequency) the chapter gives for why failure paths are more tribal, and explains why lower rehearsal frequency makes that knowledge both rarer to find recorded anywhere and more valuable to deliberately capture through direct questioning.