func busyAgainAfterLongSilence(srv common.ChatServer) bool { … } var lastObservedBarPatrons … func newPeopleJoiningTheConversation(srv common.ChatServer) bool { … } var lastChannelRecommendation … var ignoreChannelActivity … // ChannelBecomingActive has the bartender point out to people that conversation in another channel is increasing, and they should check it out.. func ChannelBecomingActive(srv common.ChatServer) bool { … }