Eduardo Orduña (2011) insists that the Iberian elements proposed as numerals are not only similar to the Basque numerals, but also combine as numerals and appear in contexts where numerals are expected. He observes Lakarra (2010) not dispute these arguments does de Hoz (2010). As regards the de Hoz hypothesis about considering the Iberian language as a lingua franca, Orduña remarks its hypothetical character, although Lakarra presents that hypothesis as an established fact. The problems of this hypothesis have been collected by Ferrer (2013) in a later work. Regarding the phonetic difficulties indicated by Lakarra, Orduña argues that its proposals are compatible with the Proto-Basque reconstructed of Michelena, which is for chronology and security the reconstruction that an iberist has to consider, while the hypothesis of internal Basque reconstruction of Lakarra has a vague chronology and a much lower degree of security. Finally, contrary to his first opinion in favor of the loan, concludes that the most economical hypothesis to explain the similarities between the Iberian numeral system and the Basque numeral system is the genetic relationship.