Bip32 Vs Bip39. From this point forward the seed may be written on paper or spoken in excess of phone and this opened up new, Bodily means of backing up the seed (a number of paper copies in several destinations, resilient copies on metallic plates with further safety from fire/flood https://free-bookmarking.com/story18703516/c-seed-value-generator-helping-the-others-realize-the-advantages-of-bip32-vs-bip39