Information density
Absence of both human "noise" and generative "water". Maximum dry facts per sentence.
"As is widely known, in modern business, cost optimization is of colossal importance. Over the past year, the company has managed to significantly reduce expenses, which led to an increase in net profit by 15%."
"During the reporting period, the company's net profit increased by 15% due to the optimization of operating expenses."
A genre requiring sterility
The formal style (encyclopedias, laws, financial reports) is created to convey the maximum amount of information in the minimum amount of time. This genre has no task to entertain, engage, or "pour water" just to increase the word count.
AI detectors often make mistakes on such texts because they contain no emotions and no "human" roughness. But there is a difference: AI stretches the text with clichés ("as is widely known", "colossal importance"), while a real editorial document compresses it to extreme factual density.