Comment by imaok

I'm in the first camp of looking up every word you don't know. In my opinion speed reading doesn't do much for you if you don't know enough words. I saw an article that explained how fast our comprehension drops when there are words we don't understand in a sentence. This was done by using a slider that would hide a percentage of words in an English paragraph. Basically if you know about 90%+ of the words you can understand everything, but things drop off very quickly from there. Once you have no chance at understanding the thing you're reading I think the benefits of having read it are marginal compared to just looking up the words you don't understand.