Recent concerns regarding cryptographically relevant quantum computers (CRQC) capable of compromising Bitcoin secret keys are currently classified as fear, uncertainty, and doubt (FUD). There is no empirical evidence suggesting such machines will be developed within the next decade, and their ultimate feasibility remains unproven.
Current quantum computing devices require significant resources, including massive power consumption and extensive post-processing, to perform basic computations. Despite substantial capital investment in the field, there is no direct correlation between funding levels and the successful development of stable, low-error quantum hardware.
The author compares the development of quantum technology to the NASA Space Shuttle program, which cost approximately $50 billion to reach its first crewed mission, contrasted with SpaceX's Falcon 9, which cost less than $5 billion. High spending does not guarantee a transition from theoretical research to practical application.
Recent academic advancements in quantum circuits often exist only in pure mathematics. Without hardware capable of supporting these theoretical models, such results do not indicate progress toward a functional CRQC. Researchers are currently exploring various candidate technologies without a clear, linear path to success.
Bitcoin continues to evolve its cryptographic resilience regardless of the quantum threat. Development of post-quantum signature schemes, such as SPHINCS, ML-DSA, and others, remains a priority to ensure long-term security against potential future vulnerabilities, even if quantum computers never reach cryptographic relevance.
