Did Nomura ever state how Vexen was able to create the replicas (Xion and Riku Replica)? I know it had something to do with data. I think that Xemnas was able to get the data to create Xion, when he fault Sora at Hollow Bastion in Kingdom Hearts Final Mix. I think that also the Organization's Heartless might have something to do with the creation of RR (Riku Replica). I know that sounds far'fetched. Wouldn't that explain how the Organization knew about Sora, Riku, and Kairi was from their Heartless' encounters with them in KH1?