Bip39 Standard Word List One illustration of manually creating entropy might be flipping a coin. But when an attacker gives you a coin that may be weighted a little in favor of heads, your First source of entropy should have been corrupted. Make sure you remember to allow for Restoration https://bookmark-media.com/story18710435/bip39-recover-the-smart-trick-of-bip39-phrase-that-nobody-is-discussing