
This Bitcoin Momentum Signal Preceded Last October’s Crash — Another Downturn Incoming?
Bitcoin's recent momentum signals a potential downturn as it weakens. What does this mean for investors?

Recent advancements in quantum computing have raised concerns about bitcoin's security, particularly for early wallets. However, the potential sell pressure from vulnerable coins is estimated at $145 billion, which analysts believe is manageable.
Recent progress in quantum computing has reignited a long-standing concern for bitcoin BTC$77,611.16.
A sufficiently powerful cryptographically relevant quantum computer could, in theory, break bitcoin’s elliptic curve signatures, exposing coins with visible public keys, particularly early Satoshi-era wallets, according to bitcoin analyst James Check.
Quantum doomsayers warn that this would unleash a flood of supply and crash the market. The numbers suggest otherwise.
The threat of quantum computing is not in question.
Roughly 1.7 million BTC sit in Satoshi-era addresses that could be vulnerable under such a scenario. That is about $145 billion at current prices in potential sell pressure, which sounds catastrophic, but is in fact manageable.

Quantum Supply Exposed (James Check)
During bull markets, long-term holders (investors that have held bitcoin for at least 155 days) routinely distribute between 10,000 and 30,000 BTC per day. At that pace, the entire Satoshi-era supply equates to roughly two to three months of typical profit taking. In the most recent bear market, more than 2.3 million BTC changed hands in a single quarter, exceeding the full quantum “target,” with no systemic collapse.

Revived Supply Breakdown (James Check)
In addition, monthly exchange inflows approach 850,000 BTC. Derivatives markets cycle through notional volumes equivalent to the entire Satoshi stash every few days. What appears massive in isolation becomes relatively ordinary when set against bitcoin’s existing liquidity and turnover.
The quantum threat to bitcoin involves powerful quantum computers potentially breaking its elliptic curve signatures, exposing coins in vulnerable wallets.
Approximately 1.7 million BTC, worth about $145 billion, are held in Satoshi-era addresses that could be exposed to quantum threats.
Analysts argue that while the quantum threat exists, the potential sell pressure from exposed coins is manageable and not likely to crash the market.

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A sudden, concentrated release would still matter. It would likely drive volatility and could trigger a prolonged downturn, according to Check. But even that scenario assumes economically irrational behavior. Any actor capable of accessing such a trove would be incentivized to distribute gradually, likely hedging through derivatives to minimize slippage and maximize returns.
Bitcoin markets routinely absorb supply on the same order of magnitude as the P2PK era coins. The timeframe is measured in months, not years.
The real issue is not mechanical sell pressure. It is governance. The bigger issue is potentially freezing the Satoshi coins, through BIP-361, then letting everything play out as it should.