I don't see redundancy as much of a problem for a couple reasons:
#1 If you teach yourself to scan text well, your brain becomes very good at parsing the data that is new. I can get the gist of a one-page article in 10-15 seconds if it contains only a few paragraphs of truly "New" information.
#2 Redundancy cements important knowledge in your mind. I am willing to bet that if you examined any 'designed' course of study such as you would find in college, you will see a great deal of redundancy. Studies have shown that spaced repetition and review can greatly impact how well you retain a certain body of knowledge. If you are reading articles on the same subject in an attempt to learn a body of knowledge there would be some benefit to the overlap, especially considering that any new nuggets of info would be learned in context and cemented in place next to already known facts.
#1 If you teach yourself to scan text well, your brain becomes very good at parsing the data that is new. I can get the gist of a one-page article in 10-15 seconds if it contains only a few paragraphs of truly "New" information.
#2 Redundancy cements important knowledge in your mind. I am willing to bet that if you examined any 'designed' course of study such as you would find in college, you will see a great deal of redundancy. Studies have shown that spaced repetition and review can greatly impact how well you retain a certain body of knowledge. If you are reading articles on the same subject in an attempt to learn a body of knowledge there would be some benefit to the overlap, especially considering that any new nuggets of info would be learned in context and cemented in place next to already known facts.