Ever since the release of the Polkadot paper three years ago, we knew that bridging with the Ethereum ecosystem to help extend capabilities on either side would be one of the key points of the network. This has not changed. Of course, “Ethereum” means many different things in various contexts largely dependent on intention and strictness. Few would argue that whatever the usage, Ethereum wouldn’t refer to at least the current “ETH mainnet”. However, some would assert that it would mean this to the exclusion of any other networks, even those “officially” sanctioned.