Yes, they've been live for years. Bitcoin can't do smart contracts, it's not a Turing complete scripting language and it's very difficult to work with, so of co

Yes, they've been live for years. Bitcoin can't do smart contracts, it's not a Turing complete scripting language and it's very difficult to work with, so of course it matters. And already more transactions and more daily volume is settled on Ethereum than Bitcoin, see https://money-movers.info/ https://money-movers.info/ and https://cryptofees.info/ https://cryptofees.info/ (pink lines are Ethereum DeFi applications)