“…Verbally these systems can be compared with modulus systems, although they may function like base counting systems when totals are able to be carried, either mentally or with additional bodies (Wolfers, 1971). An abundance of multibase systems have also been studied in Papua New Guinea and Oceania (Owens, 2001;Owens & Lean, 2018), for instance the common 2-5-20 cycle, where counting proceeds: 1, 2, 2 + 1, 2 + 2, 5 (often one "hand"), 5 + 1, 5 + 2, 5 + 2 + 1, 5 + 2 + 2, 5 + 5, and so on, up to a new base of 20 (often one "man"). Even systems of finger counting show a great deal of diversity (Bender & Beller, 2012), as do numerical notation systems (Chrisomalis, 2009b).…”