Bip39 Seed Phrase. Entropy values has to be sourced from a solid source of randomness. This suggests flipping a fair coin, rolling a fair dice, sounds measurements etc. Do NOT use phrases from guides, lyrics from tunes, your birthday or steet tackle, keyboard mashing, or something you think is random, https://freeurldirectory.com/listings13144195/bip39-vs-slip39-https-linktr-ee-bip39-an-unbiased-view-of-bip39-checksum