Who else just starts daydreaming when given a prompt?

I'm sitting there, just chillin'. Maybe minding my own business. Maybe trying to be productive. Then, BAM, someone gives me a prompt. And BAM, my mind starts going somewhere. It might be related to the prompt, or maybe it isn't. I was given a prompt to talk about the "upcoming trial of Johannes Gutenberg", and then I just started thinking about how we need to modernize the justice system. We could make it completely automated, using blockchain technology. But then I started thinking maybe everybody could vote on the outcome of each trial. Outcomes would be drastically different, but I figured it could work. If anyone is curious, that's where my mind wandered just a few minutes ago.<br><br>It just seems like this idea of "pure creative writing" is a fabrication. We probably all get random ideas that come to us at random times and we don't know how they come to us. But we use those ideas to fuel our writing. But probably most of the time, when given a prompt, we don't respond too much to the prompt itself. We respond to the idea that occurred to us while we were thinking about the prompt. Does anybody have any thoughts on this? Do you think that's true? Do you think prompts are more useful for creating new ideas than for creating original works of fiction?