Bip39 Entropy A BIP39 mnemonic sentence is actually a set of words (most often 12 or 24) that we are able to connect with a lot more correctly than other people that are not words (bits and numbers along with the like). BIP39's reason in introducing the usage of mnemonic https://letsbookmarkit.com/story18580066/bip85-vs-bip39-bip39-can-be-fun-for-anyone