The log-normal distribution appears all the time in human activity.

Drake meme that reads "Add examples to the model prompt" on top and "Condition the model through in-context learning with few-shot demonstrations" on bottom. Total amount of time between first and last post on the CaringBridge blogging platform. We see two log-normal phenomena represented: first, within a session, posts are published according to a rough log-normal. Second, total stay on the platform follows a rough log-normal. From one of my papers.

Why? I have no-idea. I suspect this is related to and often confused with the ubiquitousness of power laws in many other human activities.

Please send me more pointers on this topic if you have any.