Unlike the other discovery techniques, which mostly call on your internal powers of observation and imagination, this one emphasizes investigation and research. However vast your store of information and however well you can express your ideas, you'll often need to extend your knowledge by drawing on the experience and expertise of others.
Up to this point, most of your writing has been informal, maybe somewhat personal. If you've produced a draft at all, it's probably quite rough and will need revision on both global and local levels.
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