Bip39 Private Key Generator. From this point forward the seed could be written on paper or spoken about telephone which opened up new, physical means of backing up the seed (various paper copies in different locations, strong copies on metal plates with extra defense from fire/flood etc.). Seed phrases are https://troypetlz.wikipublicist.com/4909143/the_anatomy_of_a_bip39_phrase_entropy_phrases_and_security