Phrase Creator 1 illustration of manually producing entropy would be flipping a coin. But when an attacker offers you a coin that is weighted a bit in favor of heads, your First supply of entropy will have been corrupted. This may produce a bundle that only has the chinese_simplified wordlist, https://bookmarksknot.com/story20417787/bitcoin-seed-phrase-generator-with-balance-the-best-side-of-seed-phrase-generator