because this is not stocks leading the economy down (2000), this is the economy leading stocks down. this is a global debt crisis. simply restoring confidence will not change anything. those in debt will have to come out of debt. why aren't banks lending? would you lend to someone already technically insolvent?
we've increased the national debt by 10% in just about a month. you tell me if you think that bodes well for the economy.
indeed, debt will become more of a problem in coming years as people see their secured assets lose value (i.e., classic "underwater" loans). people will all seek to liquidate at once, but since they are underwater they will still be in debt even when they no longer have possessions.
DEBT. that is all you need to know about this crisis. it will take years for our debt situation to be solved. until it does, we are in a secular bear.