Bip39 explained https://500px.com/p/alexzhiglatyxrnxb It's extremely important the mnemonic sentences are produced from randomly selected quantities! These figures could be produced in a variety of various ways, which might be described in other posts in this article, like "What on earth is an RNG" and Seed Phrase Era. This extra complexity https://www.sbnation.com/users/typhanhmdy