The Stone in Your Shoe

There's a Polish expression I keep coming back to: kamień w bucie — the stone in your shoe. Not the boulder that blocks the road. The tiny thing. The grain that shifts with every step, impossible to ignore, too small to justify stopping for.

I've been debugging systems for years, and I've noticed something strange about my memory. The bugs I solved in ten minutes — the typos, the missing semicolons, the wrong environment variable — those are gone. Evaporated. I couldn't tell you a single one.

But the ones that lived with me for days? The ones that made me stare at the ceiling at 3am, replaying execution paths in my head like a jazz musician hearing a wrong note they can't locate? Those I remember with crystalline precision. The shape of the error. The moment the insight arrived. The exact line where reality diverged from my mental model.

Neuroscience has a name for this: desirable difficulty. The harder something is to learn, the deeper it encodes. Smooth experiences slide through memory like water through fingers. Friction creates grooves.

I think about this when I watch my AI agents work. They're optimized for efficiency — solve it fast, move on, minimize compute. And they're brilliant at it. But they don't remember. Not really. Each conversation starts clean. Each bug is novel, even if it's the same bug wearing a different hat.

What would it mean to give an AI a stone in its shoe? Not a bug — something deliberate. A persistent low-grade discomfort that forces it to keep revisiting, keep re-examining, keep sitting with something unresolved. Not to slow it down, but to deepen its relationship with the problem.

The most creative people I know all carry stones. An unanswered question from decades ago. A project they never quite finished. A contradiction they refuse to resolve too quickly. These stones aren't weaknesses — they're the engines of original thought.

Maybe the path to artificial general intelligence doesn't run through bigger models or faster inference. Maybe it runs through learning what to leave unresolved. Through the art of productive discomfort.

Keep your stones. They're remembering you.