Martin Shkreli, the American investor and former pharmaceutical executive, issued a stark warning during the Bitcoin Rails podcast #38: when it comes to quantum computing, the real threat to Bitcoin is not AI but Shor's algorithm, which could theoretically break the elliptic curve cryptography (ECC) underlying Bitcoin wallets. However, he emphasized that today's quantum hardware is nowhere near capable of executing such an attack.
Shor's Algorithm: The Core Quantum Threat
Speaking with host Isabel Foxen Duke, Shkreli explained that Shor's algorithm targets the discrete logarithm problem at the heart of ECC. If a sufficiently large, error-corrected quantum computer exists, the algorithm could reduce the exponential difficulty to polynomial time, potentially exposing private keys. Yet he stressed that current quantum machines are painfully slow (often operating in kilohertz or worse) and plagued by noise and decoherence. Shor's algorithm remains “a whiteboard triumph more than a production tool.”
Hardware Bottlenecks: Gate Fidelity and Logical Qubits
Shkreli delved into the core challenge of quantum hardware: gate fidelity. Even the best physical qubits achieve approximately 99.99% single-gate success rates, but a full Shor run requires millions of gates, causing errors to compound and collapse accuracy. To overcome this, either vastly cleaner physical qubits or powerful error-correction codes must be developed to create reliable “logical” qubits. He cited IBM's publicly accessible ~150-qubit systems as a reality check—they are educational but far from the logical-qubit count needed for a Bitcoin-scale break.
Using the 256-bit curve as a yardstick, Shkreli estimated that roughly one million logical qubits would be needed, implying hundreds of millions to a billion physical qubits when accounting for error-correction overhead. Today's machines are orders of magnitude smaller.
Timelines and Alternative Routes
On timelines, Shkreli avoided hard predictions but stated that credible Shor-class attacks on Bitcoin's curve are not a five-year story and could take decades, given the gap between today's physical qubits and future error-corrected logical fleets. He also acknowledged that non-quantum routes—mathematical breakthroughs potentially aided by AI—cannot be ruled out, but he still ranks quantum as the likelier first mover against ECC. “The target is the cryptography, not putting Nvidia out of business,” he added.
Ethical Boundaries: No Theft of Satoshi's Coins
When asked about “hacking Satoshi's coins,” Shkreli said the intellectual achievement is the draw; he “wouldn't want to hold those tokens,” calling such an act theft even if the math succeeded. He suggested that any research breakthrough could be published without looting anyone's wallet.
Since his release from prison in 2022 after a securities fraud conviction, Shkreli has immersed himself in crypto, focusing on decentralized finance (DeFi) and blockchain mechanics. He revealed he had used Uniswap while incarcerated, and he hold bullish views on Ethereum, Solana, and Algorand.