Their bottom to me is when they reach that fine point of wealth redistribution. From what I am hearing/reading that is what all this free fall on 'wall street', bailouts, generational debt spending, tax increases, and universal health care is leading. The economy is about to become a total function of what government declares it to be, and nobody has anything except what they get from the local government 'git and go' coupon stamp distribution center. Oh and I fully expect them to require photo IDs.
Government coupons to stimulate whatever economy they deem needs activity.