Today's significant drop is not Google's fault. Although Google's newly invented quantum chip, Willow, has powerful computing capabilities, it currently does not pose a substantial impact on Bitcoin's computing power and network security. The reasons mainly include the following points:
- Quantum bit quantity limit: The Willow chip has only 105 quantum bits, while tech entrepreneur Kevin Rose estimates that cracking Bitcoin encryption would require about 13 million quantum bits in a quantum computer, which could potentially complete the decryption within 24 hours.
- Limitations of computing task types: Current quantum computing is only suitable for a few tasks such as digital decomposition and cannot reverse one-way hash functions, which Bitcoin relies on for its encryption technology. Mainstream blockchain designs like Bitcoin and Avalanche have certain quantum resistance, and the exposure time of public keys is short, giving attackers a small calculation window.
- Bitcoin network computing power scale: The Bitcoin network has a very high hash rate, growing at the same speed according to Moore's Law. According to Dan A. Bard, a staff member at Kent University, it would take approximately 27 years for a single quantum computer to surpass other miners in the network and thus completely control it.
- Technical countermeasures: If future quantum threats increase, blockchain can resist attacks by adding quantum-resistant signatures through methods such as hard forks. For example, Ethereum co-founder Vitalik Buterin suggested that the quantum computing risk could be solved through simple hard forks.#加密市场回调 #市场回调抄底还是观望？ $BTC $ETH
