Diminishing returns on increased complexity in financial markets…
My brother forwarded me this article in the Financial Times recently. Superficially about the fall of Rome and other civilizations, as chronicled by Joseph Tainter’s Collapse of Complex Societies, it links back to the fact that the complexity of the financial sector has increased far faster than the balance of the economy — the “real” economy.
The example of diminishing returns on increased complexity may also be observed in that the financial sector’s robustness in the recent past has relied on leverage, basically meaning that to make their money, they had to bet increasingly more.
In this sense, complexity is a crippling strength — because it’s useful and produces great results at first, it continues to be turned to, even when the incremental benefits diminish and even dissipate away. But because it once produced great results, there’s little impetus to try other ideas…

