Investors can't but be pleased that all the averages -- including INC.'s -- were up for six straight months. Maybe it's best to let a sleeping dog lie, but some people on The Street have begun to wonder why we were graced with a bull market that would not quit. Is it anticipation of business growth that somehow will be so dynamic over the next coupld of years that the prospects of climbing interest rates with the return of inflation, higher energy prices, and a recession -- to name a few complications -- won't matter? Or has the rally been technical in nature, fostered by common stocks being the only game in town once interest-bearing instruments became less rewarding? Well, with chart like these, who cares?