...ghnut to us e as a mo del for its su stain a bi lity. E co nomist Kate Ra worth, who we will hear from shortly, de scri bes this as “a pic ture of 21st Cen tury pro spe rity for hu ma nity.” Rob: Now thinking of this ‘ring dou ghnut’ - the i de a is not to leave a nyone in the hole in the...