Thorchain is like UNISWAP for the multiple currency swap and exchanges. And it kind of works and competes with the Polkadot on the feature sets and use cases. I have written an article on how both of these chains work, you may like to read it :) Check out the article: https://hive.blog/hive-167922/@esmeesmith/thorchain-rune-vs-polkadot-dot https://leofinance.io/@esmeesmith/thorchain-rune-vs-polkadot-dot