I think the key element that determines how easy a piece of writing is to read is its density of novelty.
Novelty can be thought of as the writing equivilant of information. Anything the reader already knows doesn't have to be fully processed, it can just be recalled. Known words, idioms, and structures don't have to be relearned every time they appear. So only new information (novelty) has to be decoded by the reader.
The higher the density of novelty, the harder a piece of writing is to read.
Shakespeare vs Ordinary Speech
Shakespeare is relatively difficult for modern readers because there are lots of unfamiliar words, linguistic structures, and styles of expression. The reader has... (read 794 more words →)
Thanks for the responses, I'll try to address them individually.
I agree that this doesn't adequately represent our goal, but I think the problem persists even when we add lots of qualifications like "make sure the glass is filled with water for the next five minutes and then lose interest". The maximum of that function might not include a large-scale plan due to limited time, but it could include destroying everything within range except for the facility to prevent interference. It's possible that adding enough qualifications would solve this,... (read 419 more words →)