Response to comment on “The earliest modern humans outside Africa” - Hershkovitz, Israel; Duval, Mathieu; Grün, Rainer; Mercier, Norbert; Valladas, Hélène; Ayalon, Avner; Bar-Matthews, Miryam; Weber, Gerhard W.; Quam, Rolf M.; Zaidner, Yossi; Weinstein-Evron, Mina (2018)