> What if we found that humans actually do it in the same way?

We know that humans don't – or, at least, aren't limited to this approach. A quick perusal of an Organization for Transformative Works project (e.g. AO3, Fanlore) will reveal a lot of ideas which are novel. See the current featured article on Fanlore (https://fanlore.org/wiki/Stormtrooper_Rebellion), or the (after heavy filtering) the Crack Treated Seriously tag on AO3 (https://archiveofourown.org/works?work_search[sort_column]=k...). You can't get stuff like this from a large language model.