Easy to produce, impossible to read back — notes, code and models that made sense while you wrote them and never again.
From "write-only code" — technically elegant, comprehensible at the moment of writing, impenetrable afterwards. Write-only knowledge is the same failure applied to everything else you produce: notes, models, captures, generated artifacts. Easy to add to. Impossible to read back.
The tell is that it feels productive. Output accumulates, the folder grows, the graph gets denser — and none of it can be used, because using it would require re-deriving the context that was never written down.
Capture without structure. A note that made sense in the moment because you had the whole situation in your head. Six months later it is a sentence fragment with no anchor.
Cleverness. In engineering, "clever code" is an insult for a reason: it optimises for the writer's satisfaction over the reader's comprehension. The same instinct produces elaborate note-taking schemes that only their author can operate.
Generation without curation — the modern version, and the sharpest one. AI produces models, diagrams, records and code faster than any human can read them. Volume is not understanding. A thousand generated artifacts nobody has ever read back is a thousand write-only artifacts, and the system is now less navigable than before, not more.
Readable ≠ retrievable ≠ understandable. Search solves retrieval; it does nothing for understanding. You can find the file and still not know what it means or why it exists. That gap is where write-only knowledge hides — it passes every mechanical test and fails the only one that counts.
You do not fix this by writing better notes. You fix it by making orientation a built artifact: a map at every layer (Maps Everywhere), decisions recorded with their alternatives, the reasoning captured while it is still live. The test is simple — can this thing tell you what it is, without its author present?
Generation scales. Comprehension does not. Everything produced faster than it can be read needs a curated layer above it, or it is write-only by default.