As Ann probably knows, people who read a lot tend to recognise words as a single object, rather than by mentally piecing together letters. That's particularly important for irregular languages like English, where a single-character change can have arbitrarily large effects to how other characters are interpreted (bibles/bibless, for example).
Yuo mnea taht slpelign bcoemes ptrety mhcu iererlnavt, rghit?
I touhgth it was Atonino.
