James Surowiecki says investing is a bit like buying a television set--except instead of having just one salesperson talking up a particular model, you have many, many "experts" in your head yelling and telling you to buy or sell.  And Surowiecki, author of the 2004 book The Wisdom of Crowds, argues that investing actually requires limiting the amount of so-called information that follows the daily activity of the market.  "The media," he says in an interview with Big Think, tends to "exaggerate the importance of any one piece of news."  So investors are better off if they aren't cluttering their minds with a constantly moving day-to-day analysis.  Here is an excerpt of the interview:

You can watch the full interview here.