The usual metaphor for everyday software is the tool, but that doesn’t seem to be right here. PowerPoint is more like a suit of clothes, or a car, or plastic surgery. You take it out with you. You are judged by it—you insist on being judged by it. It is by definition a social instrument, turning middle managers into bullet-point dandies.

Ian Parker on how Microsoft Powerpoint can edit our thoughts

(via Newsweek: Fight the Powerpoint)