Wittgenstein asked us to imagine that everyone has a box with something in it called a ‘beetle’. Nobody can look in anyone else’s. The word still works perfectly well in conversation, even if every beetle is different, or a box is empty.
How to play it
Pick a word your team uses. Then open everyone’s box.
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.