TLDR
- Anthropic’s Claude Fable 5 helped disprove the Jacobian conjecture, a math problem unsolved since 1939
- The result was confirmed within a day and can be verified by hand
- Bitcoin has been trading in line with AI-related stocks like chipmakers and memory companies
- Bitcoin miners have shifted into AI data-center operations, tying their fortunes to computing demand
- The AI breakthrough raises questions for crypto investors as capital flows toward AI, chips, and compute
Anthropic’s Claude Fable 5 has helped disprove a mathematical problem that had been unsolved for 87 years. The result was posted on X by Levent Alpöge, a number theorist at Anthropic and former Harvard fellow, who credited the AI model directly.
The problem is known as the Jacobian conjecture. It dates back to 1939 and appears on mathematician Stephen Smale’s list of the most important unsolved problems of the century.
The conjecture involved a question about mathematical “machines” — functions that take inputs and return outputs using only addition and multiplication. The question was whether such a machine could always be reversed if it passed a specific reversibility check.
For 87 years, no one could prove it worked — or find a case where it failed.
Claude Fable 5 found a counterexample. It built a function that passes the check but cannot be reversed, because three different inputs all produce the same output. One counterexample is enough to disprove the conjecture entirely.
How This Connects to Bitcoin
Bitcoin has been trading alongside AI-related assets for months. It fell sharply last Friday after Chinese lab Moonshot AI released a model that rattled semiconductor stocks. It recovered this week as those stocks bounced back.
The link between Bitcoin and AI is partly direct. Many of Bitcoin’s largest miners have shifted their operations to include AI data centers. Their revenues now depend on demand for computing power, not just on crypto prices.
The broader connection is about where money is flowing. Investors who previously focused on crypto have been moving capital into AI companies, chipmakers, and computing infrastructure.
What This Means for Crypto Investors
Every AI breakthrough like this one strengthens the case for investing in AI. That raises a harder question for crypto holders: why own a token that moves with the AI cycle when investors can own AI companies directly?
Bitcoin’s price has increasingly acted as a proxy for AI sentiment rather than moving on crypto-specific news. When AI stocks rise, Bitcoin tends to follow. When they fall, so does Bitcoin.
The Jacobian conjecture result is not a direct market-moving event for crypto. But it adds to a growing body of evidence that AI systems are advancing fast.
That pace of advancement is drawing more risk appetite toward AI and away from other asset classes, including crypto. How much of that shift is temporary and how much is structural is something markets are still working out.
At the time of reporting, Bitcoin was trading around $65,842, down 0.25% on the day.







