Analysts Split on Bitcoin Quantum Threat Timeline
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- Whale wallet bc1qpt transferred 16,400 Bitcoin (~$1 billion) to a new wallet address on Monday after seven months of inactivity, according to blockchain analytics platform Lookonchain.
- Daily crypto trading volume across 44 spot exchanges fell to $15 billion last week — the lowest level of 2026 and a 70% decline from January peak levels, per Kaiko data cited by The Kobeissi Letter.
- The Kobeissi Letter wrote on X that "crypto market liquidity is drying up," framing the whale transfer against a backdrop of sharply contracting market activity.
- Blockstream CEO Adam Back said in November 2025 that Bitcoin faces no meaningful quantum threat for at least the next 20 to 40 years.
- Bernstein analysts countered in an April report that Bitcoin has about three to five years to prepare for a post-quantum security upgrade.
- Bitget Wallet research analyst Lacie Zhang called Back's assessment "the more accurate and measured view," saying practical quantum threats remain "highly unlikely within the next decade."
- Bitfinex analysts called suggestions of a 3-4 year quantum breakthrough "premature," adding that any such breakthrough would also threaten traditional financial systems and other cryptographic infrastructure.
Why it matters: Bernstein's 3-5 year quantum warning versus Back's 20-40 year estimate leaves Bitcoin's ecosystem without consensus on when to pursue a post-quantum cryptographic upgrade. With exchange volume down 70% from January peaks and liquidity drying up, per The Kobeissi Letter, the market depth for any such transition is shrinking.
