The size of the financial sector swelled to about 9% of GDP in 2010 from around 5% in in 1980. Perhaps that is what the thread was referring to. Nearly doubling in size when finance doesn't produce anything real. They are a middleman. Would certainly like to see nationalization of large parts of finance such as simple checking accounts, insurance, and the big one, lets double down on Social security so that people can have dignified retirements regardless of what their work was. We dont need a big financial sector to have a great economy; Its a brain drain. Smart people should be working on real world problems like diseases, automation, efficient cheaper construction, environmental remediation, etc. that improve the standard of living for society.