Schrödinger’s People By Sarah Stegall Copyright © 2010 by Sarah Stegall Fringe Thursdays on Fox at 9/8 E/C “Amber 31422” Written by Josh Singer & Ethan Gross Directed by David Straiton “Just because we look alike doesn’t mean we have anything in common.” —Joshua Rose (as Matthew Rose) In Manhatan, in the Red universe, two men work frantically to free a third, who is trapped in quarantine amber. He is cut out and revives; the man reviving looks exactly like him. A doppelganger from the other side? A clone? No, something far simpler: a twin brother. More to the point,…