Hmm... TikTok has apparently long had "text enhanced with background" genres, and TIL, text posts since 2023. So text is ok. But non-independent items? For generative storytelling, "here is a next paragraph for the story", swipe left/right might work? Want to avoid "I don't much like this new paragraph, but I'm afraid to lose it and be stuck with something worse". Swipe left/right and up for continue? Swipe down to revisit old choices? Maybe present new text bolded, appended to old text, for context. Or a "next page of a picture book" idiom. A text field for direct creative or editorial intervention - speech to text. Maybe a side channel input for "story and background should now be soporific". Generative bedtime stories, but incrementally collaboratively created... Thanks for the brainstorming prompt.