There is an advantage to the overconfidence described (from drugs, sleeplessness, or whatever) - if you are the sort to over-edit and second-guess yourself (cou

There is an advantage to the overconfidence described (from drugs, sleeplessness, or whatever) - if you are the sort to over-edit and second-guess yourself (cough), then it can help produce a first draft of something. It'll be a lousy first draft, but that's often better than one that doesn't exist.