Academic studies show that using quantum computers to attack Bitcoin mining is physically impossible due to extreme energy demands-equivalent to a small star’s output.
While quantum algorithms like Shor’s threaten wallet security, Grover’s algorithm fails in practice for mining. Researchers estimate a quantum 51% attack would require 10²³ qubits and 10²⁵ watts-far beyond current capabilities.
Another paper mocked recent "quantum factoring" claims by replicating breakthroughs using a 1981 home computer and a dog. Most reported advances relied on rigged numbers or classical preprocessing.
Despite growing concerns, experts agree that quantum threats to Bitcoin are exaggerated in the media. The real risk lies in legacy wallets, not mining.
Developers are already working on quantum-resistant upgrades, including BIP-360 and Taproot enhancements.
Markets reflect skepticism, with low odds of a quantum attack before 2027.