Agree! One of the most interesting things I've learnt about their culture was the purposeful abomination attitude to writing. This was so because the stories and guidance was shared based on merit of whomever was to receive it, so the culture as a whole purposely did not develop a system of writing. Instead a system of stories, symbols and imagery to be understood at many levels and so it was more secure. This is the same as the symbolic language of Western traditions too, it meant to be read at many levels. So for Aboriginal people, before knowledge could be passed down, people had to be assessed by someone who knew, writings could be potentially be shared by anyone and that would potentially be left with people not ready. It was irresponsible then to write because knowledge given to those not ready was considered a danger to their tradition.