The world’s largest economy should not be governed by outdated assumptions about how fast it is capable of growing. Kevin Warsh used his Jackson Hole address to challenge the Federal Reserve to reconsider those limits and rethink its approach to monetary policy.

Although much of the immediate attention focused on whether Warsh increased the likelihood of an interest rate increase in September, he placed a larger question before the Fed: What if artificial intelligence, accelerating business investment, and potentially greater productivity are increasing how fast America can grow without generating inflation?