Reply to Barkai: Implications of the Konso bone handaxe Suwa, Gen ; Asfaw, Berhane ; Sano, Katsuhiro ; Beyene, Yonas Abstract Publication: Proceedings of the National Academy of Science Pub Date: December 2020 DOI: 10.1073/pnas.2018084117 Bibcode: 2020PNAS..11730894S