In 1973 Richard Routley (later Sylvan) imagined the last person alive, destroying every living thing on his way out, “painlessly if you like”. If what’s wrong is harming people, he’s done nothing wrong. Routley thought nearly everyone would feel he had, and that our ethics needed to catch up.
That’s the whole collection examined, every room. Now imagine doing this with your own life, for a year, with two people who come to know it well. That’s membership.