It seems like bionic reading highlights the first syllable of each word, while your version only highlights the first letter. It does make a difference, since t

It seems like bionic reading highlights the first syllable of each word, while your version only highlights the first letter. It does make a difference, since the first syllable helps guess the word. Edit: Other comment pointed to this bookmarklet, which does that: https://www.locserendipity.com/Hyper.html https://www.locserendipity.com/Hyper.html