This is the superior way to read. I have gone through entire books using this method and it felt effortless. I use a Firefox extension to read articles but there have been many others that got abandoned over the years, one of them was called "Spritz" (offering 4chan gold to anyone who remembers it).
https://github.com/jamestomasino/stutter
https://www.youtube.com/watch?v=TKgZAOQctzo
https://github.com/jamestomasino/stutter/wiki/Research

You might have also heard of "Bionic Reading" which I find horrible and outclassed by RSVP.