“…It is well known that stone tools are often only a part of the entire technological system comprising the design of implements and weapons which includes the necessary know-how related to ballistics, hafting, fletching etc … In the case of the Uluzzian, this is apparent as shown by the occurrences of lunates displaying clear traces of impact fractures, suggesting their use as armatures in throw 21 ing weapons (Sano et alSano et al, 2019). A similar use can be supposed for flakelets and bladelets produced by bipolar technique, as hinted at by some ethnographic, archaeological and experimental instances (White and White, 1968;Chauchat et al, 1985;Shott, 1989;Crovetto et al, 1994;Le Brun-Ricalens, 2006;Riel-Salvatore, 2009;de la Peña et al, 2018;Moroni et al, 2018a), and underpinned by the very preliminary results from the use-wear studies carried out on a few elements from Cavallo, Castelcivita and Uluzzo C. Lithic technology is a proxy for human behaviour as well. Bipolar technique has been commonly recognised as an "expedient" production system used to save time and energy during possible "crisis" conditions (Callahan, 1987;Shott, 1989;Jeske, 1992;Hiscock, 1996;Diez-Martín et al, 2011;Mackay and Marwick, 2011;Eren et al, 2013;Morgan et al, 2015).…”