Sure, we have seen "anomalous" years for median earners from time to time, but it's important to remember that over time real median income has still been incre

Sure, we have seen "anomalous" years for median earners from time to time, but it's important to remember that over time real median income has still been increasing as a function of the business cycle — I.e. the first derivative has always been positive during bull economies (see: FRED historic data). Sometimes the second derivative is also positive, which isn't uncommon. In 2019, the second derivative was not only positive, it was very positive.