In his recent book, "The Problem of Twelve: When a Few Financial Institutions Control Everything," Harvard law professor John Coates sheds light on the secrecy, lack of public accountability, concentrated power, and the disproportionate influence of a select few institutions in our financial system. Coates joins Bethany and Luigi to dissect the potential dangers of this era of financial consolidation and explore possible solutions, including accountability and transparency, to ensure a more equitable economic system. Specifically examining the "Big Four" index funds (Vanguard, State Street, Fidelity, and BlackRock) — that collectively hold more than twenty percent of the votes in S&P 500 companies — and the transformative rise of private equity funds, they discuss the challenges posed by concentrated financial power and its impact on markets, economies, and society at large.