It's a blog, "Exploring the likely implosion of the Affordable Health Care Act." This new blog - ACA Death Spiral - is by Seth Chandler, a law professor at the University of Houston Law Center. He says:
I’ve taught insurance law, including life and health insurance law, for many years, been a co-director of the Health Law & Policy Institute, and done considerable work on the economics of insurance and its regulation. I’ve been very active using Mathematica, a system for doing mathematics by computer, and have shown how this tool can be used to analyze legal systems and many issues in insurance law such as adverse selection, moral hazard, correlated risk and a variety of issues in life, health, property and casualty insurance.
His posts are fascinating, somewhat doomsday, and often intellectually beyond my pay grade.