Be your own banks (plural)

<p>Why do Ethereum addresses work on Polygon and Binance Smart Chain?&nbsp;</p> <p>If you create an Ethereum address in your wallet (for example MetaMask), the same address can be used on other EVM compatible layer 2 chains, such as Polygon Matic and Binance Smart Chain.&nbsp;</p> <p>The reason is because these sidechains use the same digital signing algorithm and blockchain address derivation function. &nbsp;It's like creating a bank account number at one bank, and finding that the same account number now exists and can be used in other banks in other countries.&nbsp;</p> <p>Perhaps the catchphrase "be your own bank" should be changed to "be your own banks"...</p>