Why bitcoin addresses in testnet are not the same as in mainnet? For example ethereum address in mainnet can be used in testnet's (ropsten, rinkeby).
Because using the same addresses for both is an enormous footgun. People could accidentally send funds on the wrong chain.
sounds counterintuitive. had the same address been used on both "chains", it would be a simple 1:1 Dec 9, 2022 at 5:00