Bitcoin and Ethereum: Quantum Risk Seen Years Away as BTC Down 46% Since Oct 2025

On 21 February 2026, developers and researchers reiterated that quantum computing is a distant threat to Bitcoin and Ethereum, not a current crisis. Bitcoin has slid about 46% from its October 2025 peak of $126,100 to roughly $67,000, while Ether is down around 58% to near $1,950; observers attribute recent moves to macro liquidity and capital shifts toward AI, rather than quantum fears.