Text without an author
The material lacks professional or personal biography. It could have been published by anyone with equal success.
"Data has become the new oil. Code has become the main asset of modern companies, and digitalization opens new horizons."
"I'm writing this from my laptop in the kitchen, it's almost 1 AM, so if my thoughts break off somewhere — you get the idea."
"Programmatically, I would identify three peaks, and monitor the frequency of each. Total, 6 bytes."
Lack of body and past
AI is located nowhere. It writes "from eternity" to an abstract "audience". It has no profession, no past, no favorite mug on the desk, and no health issues.
Live text always bears the imprint of a specific personality at a specific point in space and time. If you cannot mentally draw a portrait and the setting of the author behind the text, you are dealing with synthetics.