However, the point of this test is lost on most people, and they need to turn it around. The important point is that if the stock market grows at 6.5-7%, then the economy must grow significantly faster than the trustees predicting. As DeLong says:
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That means that the profits of currently existing and traded companies (not aggregate profits!) have to grow at 3.5%-4% per year... That means that the economy as a whole has to grow at 4.5%-5% per year forever... That's much higher than the Social Security actuaries' long-run growth assumption, which heads for productivity growth of about 1% per year and very low population growth by 2050.
I want a nice little op-ed pointing out how long the Fund will remain solvent if the economy grows at 4.5-5% forever, a requirement for stock returns of 7%.