Bridges are a newer concept that is starting to catch on in 2021. Bridges allow cryptocurrency holders to "move" (or "bridge") their assets between different blockchains. This enables them to hop from chain to chain and reach out to other networks. It uses cross-chain communication technology to support transactions between two or more networks, which can be layer 1, layer 2, or even off-chain services. For example, USDC holders on Ethereum may wish to transfer their USDC from Ethereum to Ava...