> If the trend is that the middle class is moving toward size 0 while the upper and lower classes are growing I think you've hit on it, there would have to be

> If the trend is that the middle class is moving toward size 0 while the upper and lower classes are growing I think you've hit on it, there would have to be nobody on the income distribution curve in the middle, between the vast bump of poor on one hand and the smaller bump and long tail of rich on the other hand. But that's not what we have. We have a literal median with most people making money in the middle, and it has gradually shifted higher, but not as quickly as the rich, which is the real problem.