This just doubles my question from reading the original post: A full half-hour, for a six-page memo? Are these incredibly dense and full of new information to the readers? People don't really read that slowly. Average adult reading speed is something like 250 wpm. Average memo might be, what, 300 wpp? So, six minutes to read, maybe ten if you're taking your time?

Not sure anyone has the answer, but that length of reading time vs. the presumed number of words to be read struck me as notable.