That 15-word prompt insight is meaningful, and it clearly captured the state of interaction at the time of that study.
But what seems to be changing quickly now is how people interact with models. More and more are speaking instead of writing. And when that happens, prompts naturally become longer, more fluid, and often more exploratory by default.
This shift from text to voice isn’t just about word count — it changes the dynamic of the interaction itself.
I wrote this post recently, in case it’s relevant to that direction:
Interacting with AI: How Different Methods Affect Your Experience
It’s just one angle, but it might connect to where things are headed.
Most people still let it pass through, but the interaction style itself might start nudging things toward more depth.