Answer: Academic writing is very formal, usually; depending upon the Journal, the format must be exact, and in different disciplines, often each Journal has its own distinct formats. In Chemistry for example, a certain program may be required for use in producing the structural formulas! Each reference must follow a strict way as well. These references are very important, and if you should use a procedure by “Dr. Smith”, it is very bad form to omit such things.
On the other hand, with normal writing, there is a much greater degree of freedom in how and what you write and how you write it. Poetry is very well known from antiquity on as being given even a greater latitude of freedom; Many regular Rules don’t apply in Poetry that would for “normal” writing. It can make reading early Latin poetry a bit harder, for the rules there are very different than in normal Latin, and not much has changed there over millenia!
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