Bip39 Recovery Seeds A BIP39 mnemonic sentence is really a list of words (most commonly twelve or 24) that we are able to connect with a lot more successfully than other people that aren't words (bits and figures and the like). BIP39's function in introducing the use of mnemonic words https://socialmediatotal.com/story3936150/bip39-documentation-the-smart-trick-of-bip39-phrase-that-nobody-is-discussing