In the legal community (and I'm sure many others), there is tremendous benefit to writing concise introductory and concluding paragraphs, as well as tables of contents that act as excellent skeletons for much longer documents. In policy-land, the one-pager is king...but I digress.
I guess I'm just kind of lost as to how or when the cost of accurately summarizing text by computer is cheaper than basically "asking" the author to provide one. Will the quality of a computer-generated summary ever be >= the quality of an author-generated summary?