That makes no sense at all to me. How does that make them efficient? | Hacker News

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		charlesdm on June 29, 2016 \| parent \| context \| favorite \| on: Investing Returns on the S&P500 That makes no sense at all to me. How does that make them efficient?

gnaritas on June 29, 2016 [–]

Efficient essentially means random.

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