American investor and former pharmaceutical executive Martin Shkreli told host Isabel Foxen Duke on the Bitcoin Rails podcast #38 that if quantum computing ever scales, Shor's algorithm—not artificial intelligence (AI)—poses the most credible path to cracking the elliptic curve cryptography behind bitcoin wallets, though today's hardware is far from capable.
Quantum Threat: Shor's Algorithm and Bitcoin's Weakness
Shkreli opened by separating quantum reality from hype: quantum will not replace Nvidia-style classical compute, but “when it comes to just Shor's algorithm and just Bitcoin, you have something to worry about.” The caveat: practical quantum machines remain slow, noisy and numerically fragile, and any credible attack would require error rates orders of magnitude better than what's been demonstrated.
The core issue is fidelity. In quantum circuits, each logic operation (a “gate”) succeeds with some probability. Shkreli noted best-in-class gate fidelities around “99.99%,” which sounds impressive until you compound the error across the “millions of gates” a full Shor run would require—at which point accuracy collapses. The upshot: either build vastly cleaner physical qubits or layer powerful error-correction codes to create highly reliable “logical” qubits. Both are hard.
Hardware Reality: Fidelity and Qubit Count Gaps
He flagged IBM's publicly accessible ~150-qubit systems as a reality check: they're educational but nowhere near the logical-qubit counts needed for a Bitcoin-scale break. Using the 256-bit curve as a yardstick, he discussed ballpark resource needs that reach roughly a million logical qubits—implying hundreds of millions to a billion physical qubits, depending on error-correction overhead. Today's machines are orders of magnitude smaller.
Shkreli even noted that cosmic-ray-induced bit flips add to the noise problem. Classical GPUs operate at extremely low error rates, while quantum hardware wrestles with noise, decoherence, and environmental disturbances. Until error correction truly tames those issues, Shor's remains a whiteboard triumph more than a production tool.
Shkreli's Crypto Journey and Market Views
Fresh out of prison in 2022 after being convicted of securities fraud, Shkreli dove into crypto, zeroing in on DeFi and blockchain mechanics. He revealed during an X Spaces chat that he had been using Uniswap—Ethereum's leading DEX—from behind bars, captivated by how it sidesteps traditional financial gatekeepers. He talked up Ethereum, Solana and Algorand, predicting ether could eventually overtake bitcoin by market value—a scenario often dubbed “the Flippening.”
On timelines, he sidestepped hard predictions, acknowledging that credible Shor-class attacks on Bitcoin's curve are not a five-year story and could take decades, particularly given the gulf between today's physical qubits and tomorrow's error-corrected logical fleets. He did concede that non-quantum routes—mathematical breakthroughs potentially aided by AI—can't be ruled out, but he still ranks quantum as the likelier first mover against elliptic curve cryptography.
Ethical Boundaries: Don't Touch Satoshi's Coins
Ethics surfaced, too: asked about “hacking Satoshi's coins,” Shkreli said the intellectual achievement is the draw; he “wouldn't want to hold those tokens,” calling that theft, even if the math succeeded. The research, he suggested, could be published without looting anyone's wallet.