When I was still in school I scored over 900 on a reading speed test. For those skeptical how this is possible, I don't read linearly my eyes make saccades and groups of words come piling into my brain like someone dumped a bucket of Scrabble tiles. There seems to be a long "pipeline" wherein the words from different lines and different order in the sentences get reassembled into meaning. After reading something very quickly if I look away the information is sort of still "digesting" for some time.

(I seem to have a good size memory buffer for this which no doubt has to do with enabling the speed reading. I remember in typing class classmates were amazed that the way I transcribed assigned text was to read a half a page or more and type it all out verbatim before going back for another chunk. Until they pointed it out I didn't think that was anything special.)

I will admit that at 900 WPM I wasn't getting 100% of the material (albeit enough to get 90% on the comprehension test - which is less than 90% of the source material, just enough source material to reconstruct 90% of the gist). I was really trying to see how fast I could go, since it was computer graded and I could gamify it. (I did get a different text to read and questions to answer about it each time; I wasn't re-reading the same text.) Through this same exercise I learned my comfortable reading speed was 200 - 300 WPM and speed reading without loss of comprehension (just requiring effortful concentration and/or impatience) was around 500.

As an adult I'm certain my reading speed is NOT that fast anymore, and I often find myself re-reading text I just read.