Instantiate a huge collection of persistent objects spread randomly across multiple servers, using some form of message passing to communicate between them. A central system monitors the frequency of communication between various objects and relocates their position in the farm to optimize:
1) the most common communication paths occur within the same server
2) the most common communication groups are on separate servers
So if objects A-B-C are witnessed to communicate excessively to each other, they're all moved to the same server (server 1). If objects D-E-F communicate excessively to each other, they are moved together to be on server 2.