I've been using Spritz (www.spritzinc.com) and a couple similar android applications (like Balto Speed Reading) for speed reading web sites and PDF files for a couple years. It's interesting. It changes the experience of reading almost into one of watching a video. You really have to stay focused, though. It's not easy to recover after you've been distracted.
I wrote this on the topic a while back - http://chescosteve.blogspot.com/2015/11/technology-review-spritz-year-and-half.html
So would you say it changed your life in any way?
Mostly, it makes leisure reading on the train faster when commuting to/from the office. Unfortunately, it's not great for academic or technical articles, which is where I had really hoped to benefit when I got started. Citations ruin the flow and charts/graphs can't be viewed in a speed reading app.
Good tools for the tool box, but you have to pick and choose when you use them.
Update: OTOH, if I watch your video, maybe I'll learn some techniques that will work even with citations, charts, and graphs. Haven't watched it yet, but I've saved the link.
Speed reading is something I've wanted to do for a while now. Checking out your links too.