The good news is, in 2012 the developer Pieter Wuille designed the BIP32 specification at The bottom in the hierarchical deterministic wallets. Together with it, Pieter made a mathematical purpose to make a learn important from which to derive all other keys in a deterministic way. In the following paragraphs https://bookmarksoflife.com/story4445598/little-known-facts-about-bip39-seed-phrase-list