An executive summary, or management summary, is a short document or section of a document, produced for business purposes, that summarizes a longer report or proposal or a group of related reports in such a way that readers can rapidly become acquainted with a large body of material without having to read it all. It usually contains a brief statement of the problem or proposal covered in the major document(s), background information, concise analysis and main conclusions. It is intended as an aid to decision-making by managers and has been described as the most important part of a business plan.
Oblivious - Not aware of what is going on around you.
B., “the bends” is known as decompression sickness that occurs in scuba divers when dissolved gasses come out of the solution in the bloodstream, forming gas bubbles in the circulation. this relates to the paragraph above.