Not really, insofar as that early buyers aren't paid out w the entry of new participants with the absence of any real productive usage of capital. It's more tha

Not really, insofar as that early buyers aren't paid out w the entry of new participants with the absence of any real productive usage of capital. It's more that firms invest in production with the expectation for demand to increase, and outside of increased per capita spending, the main contributor to that effect would be simply more participants in the market. The expectation is obviously somewhat self-serving, but there isn't the sort of hollowness as you would get in a Ponzi Scheme. The system itself would still work so long as population growth slowly came to a halt rather than collapsed and firms observed such trends.