1. A system for reducing server loads, comprising: a plurality of servers; a subgroup optimization module configured to: assign respective costs to interactions amongst a plurality of objects in a virtual universe; and segment the plurality of objects into subgroups based on the respective costs of the interactions; and a server transfer module configured to apportion one or more of the subgroups between the plurality of servers, wherein the assigning the respective costs to the interactions comprises assigning one of a plurality of unit values to each of the interactions, and wherein each of the plurality of unit values are based on interaction importance and interaction length.