Highlight the informative words. Most highlighters mark keywords, or bold the start of each word the way bionic reading does. Info Highlight does neither. A language model scores every word by how predictable it is from the words before it, then fades the predictable ones. In "I opened the door and saw a cat / I opened the door and saw a UFO," "UFO" gets highlighted more than "cat," because "UFO" is more surprising — it carries more information.