“The problem is in making a special exemption just for yourself,” she says. This reminds her of a way of thinking proposed by the philosopher John Rawls: Imagine that you do not know what position you are going to hold in society—rich, poor, educated, insured, no access to health care, infant, adult, HIV positive, healthy immune system, etc.—but that you are aware of the full range of possibilities. What you would want in that situation is a policy that is going to be equally just no matter what position you end up in.

