I'm a bit confused by this - I cannot even imagine how you would think in a way that is not linear when thinking about a story. Sure you might be thinking of various aspects that you want to include and you don't know where in the overarching story they will fit in, but still these aspects can be expressed in an order that is either linear or able to be broken down into smaller chunks that are also linear. Seems this article is talking about something different than this again..

Could someone enlighten me?