Like "Neutron Jack," "Nuclear Wintour" will soon be out of fashion. The Rag Trade, at its essence, is ephemeral... and dramatic . . . and, most importantly, visual. So if you seek visual proof that Wintour is toast, watch Meryl Streep vamp her role as Miranda Priestly, Anna's glamorous and evil alter ego in the preview of The Devil Wears Prada on YouTube. Then watch the real-life Wintour look cranky and curt while uttering profound prophecies like "fashion's always about looking forward" in the trailer to September Issue. Were genuine fashion legends like Jacqueline Onassis and Diana Vreeland ever upstaged by the actresses portraying them: never! Punch line: If you want to leave a legacy, you need to be at least as interesting as your fictional persona.