Asthesayinggoes,＂Changeisnotalwaysforthebetter.＂Takesocialinteraction[交往],forexample.Wenowliveinaworldinwhichmanyteenagersspendhourslockedawayintheirbedroomsshootingvirtualsoldiersandhittingzombies[丧尸]overtheheadwithdigitalbaseballbats,whileotherssithomealone,chattingwithfriends,notinperson,butthroughsocialnetworks.Teachers,politiciansandparentshavegenuinereasonstoarguethatyoungpeoplelikethisareindangeroflosingtheabilitytoconnectwithoneanother.
