Solana Has Wall Street’s Speed
On 21 October 2026, at slot 459,653,000, Solana switched its consensus engine. Finality—the moment a transaction becomes irreversible—moved from roughly 12.8 seconds under TowerBFT to a design target of about 150 milliseconds under the new protocol called Alpenglow. That single number is the entire story: a public blockchain now aims to settle in the same window that high-frequency trading desks and payment networks already treat as...
