For years scientists have wrestled with a puzzling fact: The universe appears to be remarkably suited for life. Its physical properties are finely tuned to permit our existence. Stars, planets and the kind of sticky chemistry that produces fish, ferns and folks wouldn't be possible if some of the cosmic constants were only slightly different. Well, there's another property of the universe that's equally noteworthy: It's set up in a way that keeps everyone isolated. picked by AutumnLotus 9 months ago