By 2020 , experts say virtual worlds will be widespread . Online worlds could replace Facebook as most popular Internet ##place . Booker believes that , in a society that 's increasingly mobile , virtual worlds help us hold our far-flung social networks together . Experts say young people could lead spartan , offline , luxurious lives online . But Star Trek - becoming fully - interactive is still some way off .
By 2020 , experts say virtual worlds will be widespread . Online worlds could replace Facebook as most popular Internet ##place . Experts say young people could lead spartan , offline , luxurious lives online . But Star Trek - becoming fully - interactive is still some way off .