Comment by al_borland

It can help to force depth into a topic that requires it, and more expression and emotion into writing where that is of value. It also forces the writer to think more deeply about the topic and organize their thoughts.

While I hated it in high school, but think I better understand it now. I think part of the problem is they never explained the "why" or the "how", just the requirement. I wasn't able to write anything more than a page or two without extreme difficultly until college when the requirements went up to 30 pages.

In theory, someone who can write a 30 page paper could effectively distill it down to a short memo when needed, summarizing their primary point(s). Someone who can only write short memos would have a hard time writing something longer one day if/when required. I was trying to do a knowledge transfer one day, opened up Word, and just typed 20 pages on everything I knew about a tool we used heavily, but wasn't documented anywhere. I don't think I could have done that before I was forced to write those longer papers in college.