Consumer Price Index Year over Year (CPI YOY) vs 2 Year Yield (2YY) vs Fed Funds. To even begin to arrest inflation, the Fed has to get Fed Funds above the 2YY. To break the back of inflation, the Fed must get Fed Funds above CPI YOY. Does the most recent drop in CPI YOY mean that peak inflation is already in? People forget that when inflation runs hot, so does its volatility. For lasting inflation reduction, the Fed has to get to the real neutral rate. And consider that the CPI formula you are seeing in this chart has been altered numerous times, proponents would say to better reflect productivity gains, critics would say to mask real inflation to benefit the government. Whatever you believe, if we calculated CPI the way we did in 1980 it would be nearing 18%. So it's much, much worse than this.
This is the only chart that matters for the next decade.