Something has clearly gone wrong with the economy. But how bad are things, really? And how bad might they get before better days return? Even to many economists who recently thought the gloom was overblown, the situation looks grim. The economy is in the midst of a very rough patch. The worst is probably still ahead.

Job losses will probably accelerate through this year and into 2009, and the job market will probably stay weak even longer. Home prices will probably keep falling, shrinking household wealth and eroding spending power.

In the estimation of many economists, it starts with the Federal Reserve. The central bank lowered interest rates following the calamitous end of the technology bubble in 2000, lowered them more after the terrorist attacks of Sept. 11, 2001, and then kept them low, even as speculators began to trade homes like dot-com stocks.