Bip39 Seed. Due to the cryptographic layout of BIP-39, a weak passphrase doesn't reduce the safety of another wallets or assistance expose the seed words. No, there isn't any technological limit towards the length of the passphrase. Having said that, for the sake of memorability and practicality, it’s usually advised https://sparxsocial.com/story9237981/bip39-word-list-https-linktr-ee-bip39-bip39-word-list-pdf-no-further-a-mystery