I think that's faaaaar to low of a prediction. Mid-7,000's is the bottom. Once we hit that point, the financial data starts to look too good to be true, and the buying will start again.
If you look at the market's (in this case I'm using the DOW, but all the equity markets are pretty similar) sharp decline after the Lehman Bros. collapse,
it appears we are bouncing along the bottom.
Again, though, I think it can get into the mid-7,000's with enough bad news. If you pay attention to the bond markets, you'll understand why I think that bad news is on its way.
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Edit: and the stock market wasn't "stable" from '67-'82, it was frustratingly stagnant. Investors don't want to take on the risk of equity investments for meager to nill returns.