by Serguey Shinder
For a stretch of weeks I leaned on a model for a certain kind of routine work, small transformations I could have done myself but was glad to hand off. At first I checked every output carefully, the way you watch a new colleague. It was good. Reliably good. And slowly, without ever deciding to, I stopped checking. The tool had earned my trust by being right, and being right is precisely how it lulled me into no longer looking.
The mistake, when it came, was not dramatic. It was a quiet, plausible error buried in output that looked exactly like all the correct output before it. Same shape, same confidence, same tone. It sailed through because I had stopped reading, and I had stopped reading because it had been right so many times that reading had come to feel like a waste. My vigilance had decayed in direct proportion to the tool's reliability, which is a genuinely perverse thing to sit with.
That is the trap of a tool that is usually right. A tool that is often wrong keeps you sharp. You never stop checking a thing you do not trust. But a tool that is right ninety-nine times trains you, gently and relentlessly, to wave through the hundredth without a glance, and the hundredth is the only one that was ever going to hurt you. The reliability is not the safeguard. It is the anesthetic.
What I had lost was not the ability to catch the error. I could have caught it in a second, had I looked. I had lost the habit of looking, and the habit is the whole thing. Skill you do not exercise does not stay ready. It quietly leaves, and it does not announce its departure until the moment you reach for it and find it gone.
So I built the checking back in, but deliberately, as a discipline rather than a reflex. Not suspicion of every line, which is exhausting and defeats the point of the help, but a standing rule that the more routine the output feels, the more it deserves one real look before I let it through. The boredom of verification is the price of the speed, and I had been trying to pocket the speed without paying.
The larger lesson is about the shape of my own attention. It bends toward wherever it is not currently needed, and a reliable tool is exactly the place it stops being needed, which is exactly where it is most dangerous to withdraw it. I trust these tools more than I used to. I check them more deliberately than I used to. Those two things are not in tension. The second is the only thing that makes the first survivable.
– Serguey Asael Shinder
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