La s¨¦lection: the admissions procedure that dare not speak its name France¡¯s new ¡®Parcoursup¡¯ system for university entry is intensifying the nation¡¯s historical agonies over whether selectivity is compatible with ¨¦²µ²¹±ô¾±³Ù¨¦, says Louise Lyle By Louise Lyle 14 June