Is Zophar talking about Job?

The chapter doesn't say. Zophar is answering (20:1), and he says you once, "Don’t you know this from old time" (20:4), where in Hebrew the you is singular; then he speaks of "the wicked" (20:5) and "a wicked man" (20:29), naming no one. In his first speech he did speak to Job about his iniquity: "Know therefore that God exacts of you less than your iniquity deserves" (11:6). In the next chapter Job says to the friends, "Behold, I know your thoughts, the plans with which you would wrong me" (21:27), and "For you say, ‘Where is the house of the prince? Where is the tent in which the wicked lived?’" (21:28). The book itself, before any of the speeches, says Job "was blameless and upright, and one who feared God, and turned away from evil" (1:1). These are Zophar's words and Job's, and the book doesn't say what Zophar had in mind. These notes don't guess, and give no verdict.