Lawyers are permitted to say things (e.g., "rhetorical flourishes" and "excusable hyperbole") during opening statements and closing arguments that would not be permitted during the evidentiary phase of a trial.
I have seen judges prohibit jurors from taking written notes during opening statements or closing arguments. But I believe I see court reporters recording the opening and closing statements. So are those part of the record? And if so does that mean that a judge can cite them in a ruling or decision on the case?