Concentration measures the share of outcomes produced by a fraction of posts. An unequal distribution is not automatically evidence of a power law.
01STORY BRIEFThe idea in three screens.3 SCREENS
The hit makes noise. The rest explains the system.
Concentration measures the share of outcomes produced by a fraction of posts.
Calculate the share of views from top posts, then inspect the rest. If one post carries nearly everything, total volume is fragile. That can still be viable if cost and repeatability are understood. Describing concentration beats attaching an untested mathematical label.
A ranked contribution chart often makes concentration visible without fitting a theoretical curve. Add counts and the observation window. Actually testing a power law requires a dedicated statistical method and comparison with alternative models. The expression should not decorate an outcome that is merely unequal. Descriptive reporting can still guide allocation well when it clearly shows which posts contribute and how much uncertainty remains about future repetition.
Heavy tails are not a licence to spray
A few posts carrying much of a campaign's reach can be an operational fact without proving a particular mathematical distribution. Calling every uneven chart a power law gives the analysis more authority than it earned. Start with the observable concentration: how much of the total came from the largest posts, how many accounts contributed, and how much work sat behind the attempts? This is enough to ask useful budget questions. You do not need a grand theory of the feed to notice that the median attempt and the portfolio total tell different stories.
Concentration is a starting point
- 01Observe
Measure how much a few posts contribute.
- 02Account
Include the cost of every attempted concept.
- 03Decide
Fund bounded exploration with explicit learning questions.
Editorial model: a way to reason about the process, not measured platform results.
The tempting response is to publish more of everything. That works only if extra attempts preserve enough creative quality, account stewardship and learning capacity to be useful. Otherwise volume expands the bill while making the data harder to interpret. Allocate a bounded exploration budget, retain unsuccessful attempts in the record, and examine whether new concepts or repeated versions created the upside. A portfolio can justify experimentation. It does not justify assuming that the next thousand weak posts contain an inevitable winner.
“The hit makes noise. The rest explains the system.”
02FIELD KITFrom concept to practice.2 SCREENS
Measure the share carried by top posts.
Adapt this to your audience, budget and test scope.
Put it to work.
- 01Measure the share carried by top posts.
- 02Show results with and without the largest hit.
Notes & sources.
The limit. Removing an outlier to improve the average’s story may erase an essential part of the phenomenon.
Further reading is linked throughout this article. Worked examples explain a process; they are not campaign results.
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