Bip39 Possible Combinations. From this stage forward the seed may be published on paper or spoken more than phone and this opened up new, Bodily ways of backing up the seed (multiple paper copies in various areas, tough copies on steel plates with additional security from hearth/flood and many others.). https://bookmarkfame.com/story18540584/bip39-dot-map-bip39-english-word-list-an-overview