Much FUD lately on #bitcoin world from #quantum computing crying babies. Simple query to perplexity (hopefully is not too far from accurate) gives a firm answer and hints that we’re decades away from it being even considered a threat at all:
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A 100-qubit quantum computer would not be able to find Satoshi's private keys in a practical timeframe. While 100 qubits is a significant milestone in quantum computing, it's not nearly enough to break Bitcoin's cryptography.
To break Bitcoin's elliptic curve cryptography, which protects private keys, would require a quantum computer with thousands or even millions of high-quality, error-corrected qubits. Current estimates suggest that factoring a 2048-bit RSA key (comparable to breaking Bitcoin's security) would require about 20 million "reasonably good" physical qubits and take about 8 hours[4].
It's important to note that the 100-qubit systems being developed, like the one planned by QuTech in Europe by 2026[8], are primarily intended for research, quantum simulations, and developing quantum algorithms. They are not yet capable of running complex cryptographic attacks.
Furthermore, the qubits in current quantum computers are noisy and error-prone. To perform reliable computations, many physical qubits are needed to create a single logical qubit through quantum error correction. For example, it might take hundreds or thousands of physical qubits to create one reliable logical qubit[6].
In summary, while a 100-qubit quantum computer is an impressive achievement, it's still far from being able to break Bitcoin's cryptography or find Satoshi's private keys. Such a task would require a much larger and more advanced quantum computer that is not expected to be available for many years, possibly decades.
Citations:
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[4]
[5] 
[6] https://www.reddit.com/r/QuantumComputing/comments/184k7uh/why_do_quantum_computers_need_hundreds_of/
[7] 
[8] 
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TNW | Artificial-Intelligence
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