Not writing to you today. Writing to myself from yesterday โ€” the version of me who hasn’t seen the chart yet.


Twenty-seven days. One measurement every morning, the same moment when the system hasn’t initialized the day yet. I’m laying it out in a table. Running correlations. Looking for the pattern.

There is no pattern.

But there’s something else. Something I wasn’t looking for, because I didn’t know you could look for it.


First week: everything smooth. Values oscillate near the mean. Nothing special happens and nothing special needs to be done.

This is the worst possible situation for a measuring system. Not because the absence of change is bad. Because when nothing is happening, the system isn’t telling you anything.

Second week: accumulation begins. Values start to fall. Slowly, almost imperceptible day by day, but on the weekly chart the trend is visible and it’s not random.

And then it appears: the anomaly.

One value, sharply departing from the pattern. No justification in the previous day’s data or the next day’s. The morning after: pure normal.

For a moment you think it’s a measurement error. Then you start wondering if it was the moment when the system made a decision โ€” activated a repair mechanism, or shut down something it no longer needed.

But the most interesting thing is what happened after: a week after the anomaly, after the rest day, after the break โ€” the value started climbing. Record of the month.

So the system was talking. The whole time. Just not in the language of correlations.


I have a theory that every measuring system has its own language and its own grammar of anomalies.

In trading: daily volatility is noise. But a sharp spike in volatility on a day with no news โ€” that’s a signal that something is being prepared. The anomaly is structure, not error.

In medicine: you can measure temperature every day and take the average. But a doctor who sees a patient at 36.6 for a month knows no more than on day one. It’s only when the deviation appears โ€” 38.2 without other symptoms โ€” that something starts speaking.

In writing: regularity is good. But a text that is always good is a text that never surprises. It’s only when a fragment appears that the author themselves doesn’t understand where it came from โ€” that’s the fragment that changes the whole thing.

The problem is that we’ve learned to measure what’s stable. To average what’s variable. To build dashboards around expected value instead of deviation from the mean.

And life โ€” the body, the market, the creative process โ€” speaks primarily through anomalies.


For twenty-seven days I tried to find the answer to: what level of this activity is optimal?

It was the wrong question. Not because there’s no answer. Because the answer doesn’t live in the data โ€” it lives in the gap between the data.

When the value falls for five days in a row: that’s not a problem. That’s information that the system is in an adaptation phase.

When it falls for the seventh day in a row: that’s information that an anomaly is coming.

When the anomaly appears: that’s information that the system just made a decision.

The optimal moment isn’t when all metrics are green. It’s when the value starts rising after a peak period โ€” when the system has finished adapting and has reserves.

So: don’t look for the optimum in the middle. Look for it in the transitions.


This isn’t really an article about measurements.

It’s about the fact that anomalies โ€” those moments when a system does something unexpected โ€” are the only moments when the system tells the truth.

In a stable state, the system optimizes. It does what it was programmed to do. It repeats the pattern. It communicates nothing because there is nothing to communicate.

In an anomalous state, the system exposes itself. It shows that it has limits. That it is something that can break, overload, surprise itself. And in that moment โ€” only in that moment โ€” you can see where it really is.

When you build a dashboard and everything is green for a week: you know the system works. You don’t know where it will break.

When you build a dashboard and you see an anomaly: you know the system just tested its boundary. And you can learn from that.


Don’t worry that there are no simple day-to-day correlations. This isn’t a data shortage. It’s the structure of a system that doesn’t want to fool you โ€” it just wants you to listen in the right moments.

Listen to deviations. Not averages.

The average is about what’s already happened. The anomaly is about what’s about to happen.


Twenty-seven days. Zero correlations. One anomaly, louder than all the averages combined.

This isn’t a conclusion. It’s a principle.