The 1970s were a pretty eventful time in markets. There was high inflation, the end of the gold standard, and a stock market crash. There was also a bunch of ideas coming out of the University of Chicago that would go on to be famous and highly influential for investors. Perhaps the most prominent is the Efficient Market Hypothesis, posited by Nobel Laureate Eugene Fama, which says that markets are right and it's useless for investors to try to outguess them. Fama later teamed up with David Booth, the founder of Dimensional Fund Advisors, and has been a longtime collaborator with the firm, which now has $777 billion under management. Today, they're releasing a documentary directed by Errol Morris and called "Tune Out the Noise," which chronicles this important time. We speak to both of these investment legends about the development of their theories, how they put them into practice, subsequent criticism, and what comes next.

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