Cosmos and Polkadot are two interoperability protocols with different built-in assumptions that claim to change how existing chains interact. In this piece by Kerman Kohli, the two protocols are broken into simple terms and evaluated from a basic utility standpoint. The key concept of Cosmos and Polkadot are bridges between major chains (e.g., Bitcoin and Ethereum). While Cosmos focuses on 'fast finality' through its Tendermint protocol, which finalizes blocks based on time and not consensus, Polkadot takes another route by adding both a finality and block production mechanism. Kohli notes that while both systems are young and need considerable development, with Cosmos Hub only launching only last month and Polkadot planned to launch in late 2019, they show promise, particularly as launchpads for other projects to migrate off of existing main chains.