A lot of the financial players since the 1970s have indeed evolved into parasites, like tapeworms. Tapeworms live in the gut, to which they attach themselves by “hooks” and “suckers,” then “get food by eating the host’s partly digested food, depriving the host of nutrients.” They can grow hideously large, many feet long, and live inside hosts for decades. Thinking about the future of our political economy, though, I was heartened when I read that “hosts also develop ways of getting rid of or protecting themselves from parasites.”

