summarizes: http://www.chrisperruna.com/2008/10/28/how-to-spot-a-market-reversal/
"Bear markets will provide several head fakes as they typically fall in multiple waves of lower highs and lower lows. It usually takes the majority of stocks listed on the exchanges to sell off enough that a true base can form that will propel the next up-trend or bull market."
"...bear markets typically end while the business cycle is still suffering. With our media, this sucker will last forever – a bunch of useless talking-heads. Why does this happen? Because the stock market is discounting events three to six months in advance"
"...no bull market has ever started without an explosive price and volume pivot reversal and follow-through."
"The big money is made in the first one or two years of a normal bull market cycle"