I saw the stories about Bionic Reading a few days ago and ended up going down the rabbit hole for a bit. What interested me was that it
wasn't the weight of the letters that helped me read quicker but the
shorter lines.
The examples with and without Bionic Reading formatting were just as easy for me to read but where it fell apart was when I read something with more words per line. Put 12+ words on a line and the Bionic Reading formatting didn't help.
Having an average of 5 words per line is so much easier for me to read it kinda blows my mind.
My (totally pulled out of my ass) guess as to why this is the case (for me anyway) is that less horizontal eye movement reduces cognitive load and allows for easier processing of what the brain is seeing.
Has anyone else found this?