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no, it means that you write whatever comes to your mind in those five minutes - story, poem, your grocery list - whatever pops up

@kilbride I've said it before: a freewrite is anything that comes to mind. Hemingway used to start the day with a blank sheet in his typewriter and he would just write anything that came to mind. Then he was throw it away. I think sometimes that is the best freewrite because it is spontaneous and rough. Sometimes, my scratches end up as something more much later. And sometimes, I already get a story in my head and just write it.