In chapter 9 “Adventuring,” under the first heading “Roleplaying,” the second heading “What Your Character Knows,” and finally the third heading “When You Know More Than Your Character,” there is a sentence that appears to be missing a word.
The last sentence in the second paragraph begins with “Instead your character acting on impossible knowledge of things to come,” but it makes more sense as “Instead of your character acting on impossible knowledge…” and so on. This is a typo common to the PDF, if that can be passed on to the appropriate team somehow.