FEO as characterized here is a demanding ideal. What if FEO becomes impossible to satisfy if inequalities in outcome become too extreme? In that case FEO requires extinguishing any inequalities in outcome among members of one generation that would bring it about that FEO cannot be satisfied among members of subsequent generations.  In the Rawlsian system of nested and hierarchically ordered principles, FEO has less priority than the basic equal liberties principle.  If FEO could be satisfied only by encroaching on free speech or the right to vote or other basic liberties, then according to Rawls it should give way. Up to conflict with equal basic liberties, FEO rules the roost. 