Ethereum co-founder Vitalik Buterin is pushing back against one of the more dramatic AI-driven Bitcoin forecasts—and says his own wealth already functions as the wager.
AI-risk commentator Liron Shapira assigned a 50% probability that Bitcoin falls more than 50% within two years, arguing artificial intelligence could undermine security assumptions protecting the network.
Buterin responded that he takes the opposite side and said roughly 90% of his net worth is already exposed to that view through his existing crypto holdings.
With Bitcoin trading around $79,500, a 50% decline would put BTC below roughly $40,000.
Buterin Is Betting on Bitcoin’s Ability to Adapt
The debate is less about AI taking investor demand away from Bitcoin and more about whether increasingly capable AI systems could compromise the network’s security.
Shapira did not identify a specific Bitcoin attack vector in the cited discussion.
Buterin’s argument is that Bitcoin should be able to respond to problems that do not require broad social consensus, such as client or mining-pool changes. He described the possibility of core hashes or proof-of-work itself being broken as extremely small.
That distinction matters.
Bitcoin’s security model is not frozen forever. Software can be changed when vulnerabilities emerge, provided developers, miners, node operators and users can agree on the response.
The difficult part, in Buterin’s view, is therefore transition risk, getting a decentralized network safely from one security standard to another.
That is also why the argument connects with the separate quantum-security debate. Adam Back has argued that Bitcoin should begin preparing for quantum threats even if practical attacks remain years or decades away.
Bitcoin Is Already Facing More Immediate Risks
The AI scenario is dramatic, but Bitcoin currently has much more conventional catalysts to worry about.
BTC has slipped back below $80,000 after reaching about $82,179 on Sept. 3, as strong U.S. employment data revived expectations for another Federal Reserve rate increase.
Coinpaper’s latest Bitcoin outlook identifies roughly $78,000–$78,500 as important support and $83,000–$84,000 as the next major upside zone.
Institutional demand has also remained strong. U.S. spot Bitcoin ETFs absorbed about $905 million across Sept. 3 and Sept. 4, providing a counterweight to macro pressure around rates and oil. The recent ETF inflow surge shows buyers have not disappeared despite Bitcoin’s pullback.
| Bitcoin risk / signal | Current picture |
|---|---|
| BTC price | ~$79.5K |
| 50% crash level | ~$39.7K |
| Shapira probability | 50% |
| Time horizon | 2 years |
| Buterin wealth exposed opposite way | ~90% |
| Recent BTC high | ~$82.2K |
Buterin’s response should not be interpreted as a literal 90%-of-net-worth Bitcoin position. His point is that most of his wealth is already tied to crypto assets that would likely suffer if the type of systemic security failure Shapira envisions actually occurred.
That makes his statement less a conventional price prediction than a high-stakes vote of confidence in crypto’s ability to upgrade before technology breaks it.
For Bitcoin, the more immediate question remains whether it can hold near $80,000.
The bigger long-term question is whether decentralized networks can move fast enough when the threat is technological rather than financial.