Hypertext solves Colossal problems on the Author Side.
It used to be that you submitted Your Work to an Editor, who could Do Things To It, and *if you were lucky* they had a $10/hour Fact Checker to catch you when you mis-quoted dates and stuff.
Now, I am a believer that we should quit treating book like Monuments - the Third Edition Revisions take care of most of it.
So if you Print Live off a file, the Author Patch is there for the Mistaken Fact.
(Random made up example) (Circa 2004) "We don't know if the Limbic System is involved with Alcohol use. (Patch, 2009) "Oh yes, we found a correlation (not causation) with Limbic changes vs. Alcohol use."