In response to the remarks made by economist Lang Xianping, "Google realized quantum hegemony but first pulled bitcoin into the water", RenrenBit founder Zhao Dong said: "The quantum computer needs to operate more than 100,000 to solve the bitcoin elliptic curve algorithm. The number of qubits is only possible. At present, Google can operate dozens of them, and the technical difficulty increases with the power level of operand 2. If the quantum computer can crack Bitcoin, Professor Lang will definitely not care about Bitcoin first. But whether the numbers in your own bank are safe."