Board Thread:Naruto Discussions/@comment-25122992-20170201160936/@comment-25122992-20170201202919

Anyway, I realised I could be wrong. Madara could remember that text completely, even if he wasn't able to read it whole with MS only and then recall it after awakening the Rinnegan, thus comprehending the Rinnegan-meant part. And he could even pass the knowledge to Obito as well.

However, I didn't really think about the way the tablet was written. Anyway, I now realise that in Boruto Movie novel the ability of Rinnegan to decipher codes was mentioned, and it seems this ability and the tablet can be also related on that note.