Finance epitomizes indefinite thinking because it’s the only way to make money when you have no idea how to create wealth. If they don’t go to law school, bright college graduates head to Wall Street precisely because they have no real plan for their careers. And once they arrive at Goldman, they find that even inside finance, everything is indefinite. It’s still optimistic—you wouldn’t play in the markets if you expected to lose—but the fundamental tenet is that the market is random; you can’t know anything specific or substantive; diversification becomes supremely important. The
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