Một số Helloệu ứng, chẳng hạn như giảm huyết áp, được nhìn thấy gần như ngay lập tức.A hard fork was proposed that could return every one of the Ether stolen The DAO in the form of a refund smart contract. The new contract could only withdraw and investors inside the DAO could make refund requests for misplaced Ether