They can all see everyone else's eyes. That is, person N can see person M's eyes, for all M,N. [I don't know whether it's possible or not - it feels not, but it

They can all see everyone else's eyes. That is, person N can see person M's eyes, for all M,N. [I don't know whether it's possible or not - it feels not, but it has been hinted to me that it is possible.]