The Delphi Podcast

Nic Carter: Quantum Threatens $600B of Bitcoin

29 snips
Jan 9, 2026
Nic Carter, a partner at Castle Island Ventures and crypto researcher, dives into the existential threat that quantum computing poses to Bitcoin. After extensive research, Nic warns that the community is ill-prepared for a 'Q-Day' that could see 2 million of Satoshi's BTC vulnerable to attacks. He discusses the urgency for migrating to post-quantum cryptography and highlights a potential 'trillion-dollar bug bounty.' With parallels to historical nuclear secrecy, Nic underscores the need for immediate action to safeguard Bitcoin’s future against this looming threat.
Ask episode
AI Snips
Chapters
Transcript
Episode notes
INSIGHT

Quantum Became A Material Risk In 2025

  • Quantum computing moved from theoretical to material risk after concentrated advances and investment in 2025.
  • Nic Carter warns the consensus among physicists shifted and large institutional capital now treats it as credible.
INSIGHT

Satoshi’s Coins Are Unfixable Without A Fork

  • Satoshi's ~1–2M BTC are stored in legacy P2PK formats exposing public keys and are irrecoverable without an unprecedented fork.
  • Carter says moving those coins requires collective action equivalent to confiscation and would break core governance norms.
INSIGHT

Address Reuse And Taproot Create Broad Exposure

  • Address reuse and Taproot reveal public keys making a large fraction of BTC (hundreds of billions) vulnerable.
  • Carter estimates a third or more of supply could be exposed unless owners migrate to post-quantum formats.
Get the Snipd Podcast app to discover more snips from this episode
Get the app