Not long ago, I wrote a post about a fast hack that increased my reading speed by tracking the reading with a finger. I think that the logic behind using a tracking finger is to suppress subvocalization. I noticed that, at least in my case, suppressing subvocalization reduces the fun of reading. I actually enjoy hearing the inner voice that reads the book “with me”.
You don't need a fast way to increase your reading speed by 25%. Or, don't suppress subvocalization
