Bip39 is not defined https://www.storeboard.com/blogs/ai-for-small-business/browsing-the-globe-of-bitcoin-addresses-the-value-of-bip39/6240727 Regardless that it utilizes BIP32 technique you may nevertheless import BIP39 seeds into Electrum wallet. Also aside from BIp32 You can find BIP44 version which some wallet use for that technology of seeds. BIP39 solves this by using human-read... https://bookmarknap.com/story10934335/bip39-implementation-bip39-passphrase-generator-options-https-www-youtube-com-channel-ucupxfytj0fb78sq55hu6ocw