Ehret, in a separate publication, argued that the two principles in linguistic approaches for determining the origin of languages which are the principles of fewest moves and greatest diversity had put “beyond reasonable doubt” that the language family “had originated in the Horn of Africa”.
ˈeɪɹɪt, ɪn ɐ sˈɛpɹət pˌʌblɪkˈeɪʃən, ˈɑːɹɡjuːd ðætðə tˈuː pɹˈɪnsɪpəlz ɪn lɪŋɡwˈɪstɪk ɐpɹˈoʊtʃᵻz fɔːɹ dɪtˈɜːmɪnɪŋ ðɪ ˈɔːɹɪdʒˌɪn ʌv lˈæŋɡwɪdʒᵻz wˌɪtʃ ɑːɹ ðə pɹˈɪnsɪpəlz ʌv fjˈuːɪst mˈuːvz ænd ɡɹˈeɪɾɪst daɪvˈɜːsᵻɾi hæd pˈʊt “bᵻjˌɔnd ɹˈiːzənəbəl dˈaʊt” ðætðə lˈæŋɡwɪdʒ fˈæmɪli “hæd ɚɹˈɪdʒᵻnˌeɪɾᵻd ɪnðə hˈɔːɹn ʌv ˈæfɹɪkə”.