Bip39 Vs Slip39. Entropy values must be sourced from a strong supply of randomness. What this means is flipping a fair coin, rolling a good dice, sounds measurements etcetera. Never use phrases from guides, lyrics from music, your birthday or steet handle, keyboard mashing, or anything you believe is random, https://directory-broker.com/listings13064117/bip39-word-list-pdf-https-linktr-ee-bip39-bip39-words-an-overview