"The way our stories work is simple: the reader is given the text of a story in a small chunks, and after each, they get to make a decision about what happens next. That could be what a character says, or does - but it could also be a deeper choice, like why a character has done what they've done, or how they feel about something else in the story. Every decision the reader makes is remembered and has the potential to influence things later on - depending on how the author wants to tell their tale."