I had no pmrolebs rdianeg it. Its bsaceue wtih tmie haumn mnid can raed eevn hloe pgeas wtih jsut one gcanle. I hvee seen ppolee do it, they can raed a book in 15 mtueins and can asewnr most of the qniotesus aubot it. Azainmg... (not as esay to wtrie tihs way tuhgoh

)
Its cuz (back to normal now

) brain extracts only the essential letters and can still understand it. Words with just one letter differnece might be read wrong i think. In case with reading a page in 3 seconds, brain extract essential words, therefore it can follow the plot easily. Thats it