According to @caprioleio, five firms are forecasting multi-thousand logical qubit capability within five years, described as sufficient to break Bitcoin’s current cryptography, with about a dozen more firms a couple of years behind (source: @caprioleio, X, Oct 27, 2025). The source adds that the quantum race is a national security priority and that capital is flooding the sector at a staggering pace, highlighting accelerating timelines with direct relevance to BTC security assumptions (source: @caprioleio, X, Oct 27, 2025). The source urges a Bitcoin upgrade in 2026, flagging a potential protocol-change timeline that traders can monitor as event risk for long-dated BTC exposure and custody practices (source: @caprioleio, X, Oct 27, 2025).