A system, method, and computer program for interactive communication among a plurality of users. The invention, called Holocene Conversation Mode ("HCM"), takes advantage of the observation that human beings have developed or utilize a number of real-world characteristics to participate in, perceive, control, and glean subtleties from conversations. These characteristics include proximity and orientation of a listener to other speakers, memory ageing, emphasis by a speaker, relative importance of a speaker to a listener, reputation of a speaker, and the unique human ability to "filter" words of special interest to a listener from overheard conversations. HCM includes a suite of techniques, including spatial and content compression as a function of some of such characteristics, that can be implemented in various combinations in computer software. HCM supports other forms of user interaction, such as allowing a user to give or send an object to another user, or to allow a user to take an object from another user. In addition, HCM supports "kiosks", in which users can interact with non-human resources in the context of a host-defined environment.