For the first time since 2023, the Federal Reserve has raised its benchmark interest rate, lifting it to 3.9% in a quiet but consequential act of institutional resolve. Driven by inflation running nearly twice the Fed's target — fed by war, tariffs, and the relentless appetite of artificial intelligence for expensive chips — the central bank is choosing restraint over relief. The decision, made by a chair appointed by a president who wanted cheaper money, is as much a statement about the independence of institutions as it is about the price of borrowing.