I need to obtain the handle for the default subscription which provides Meteor.user(). More specifically, I need to register a callback on the readiness of said subscription. Even more specifically, I need to differentiate between a not-logged-in-user and a not-yet-loaded-user.
I believe that on the client if Meteor.user() if false and Meteor.loggingIn() if true, it means that the subscription is not yet ready (i.e., when the subscription is ready Meteor.loggingIn() is false.