“A troubling philosophical issue also loomed. He served on a panel that was compiling a study of studies for the National Academies of Sciences. The aim was to show that housing for homeless people improved their health and saved the public money, and yet no studies fully supported those widely held claims, none at least that met the standards of the academics on the committee. Some of Jim’s old allies refused to give up the cost-savings argument. He wrote me privately: “Housing homeless people is mandatory. A human right. But I have long been skeptical of the drive to show that it saves money, because that leaves housing dependent on whether it saves money. Ridiculous. Who would ever say that Mass General exists to save money?”