Opinions on this point, the possibility that there may not have been any writing scripts including Brahmi during the Vedic age, given the quantity and quality of the Vedic literature, are divided. While Falk (1993) disagrees with Goody,[13] while Walter Ong and John Hartley (2012) concur,[14] not so much based on the difficulty of orally preserving the Vedic hymns, but on the basis that it is highly unlikely that Panini's grammar was composed. Johannes Bronkhorst (2002) takes the intermediate position that the oral transmission of the Vedic hymns may well have been achieved orally, but that the development of Panini's grammar presupposes writing (consistent with a development of Indian writing in c. the 4th century BCE).[15]