Big O! ending

Any other Big O! fans out there? Back when Cartoon Network first aired the series, I used to sneak into the judges' chambers in the courthouse and watch it at night. I fell instantly for the retro, noir style, complete with blatantly stereotyped characters. (Yeah, I might still have a bit of a crush on R. Dorothy. . .) But even after buying the series and watching it several times over, I still don't really understand the ending. Some techno-hyped interpretation of the Bard's: "All the world's a stage," perhaps? Any ideas or suggestions?