Market Timing: How Right Do You Have To Be?

Read the full article at: http://barelkarsan.com/2008/10/market-timing-how-right-do-you-have-to.html
(via barelkarsan.com)

Many studies have shown that it is very difficult to correctly time the market. But assuming you had superior foresight, how often would you have to be right in order to beat a buy and hold investor?