Bip39 Translator. From this position forward the seed could be created on paper or spoken around telephone and this opened up new, Actual physical ways of backing up the seed (various paper copies in several locations, strong copies on steel plates with extra protection from hearth/flood and so on.). A https://andydoylu.tdlwiki.com/1092283/the_anatomy_of_a_bip39_phrase_entropy_phrases_and_security