amadeus
Bishop of Bio-Dome
duke, I know it's mostly speculation, and that they intentionally keep it from viewers, but it's still fun to speculate anyhow 

No, I didn't know there was. But how often have they done this, is it a common scene(Cutting to an exterior shot of the nuclear powerplant?)A bit OT I know but does anyone have any suggestions as to why there is ALWAYS a crow or something making a "caawww" sound when they cut to an exterior shot of the nuclear powerplant?
Yes, and Matt Groening grew up in Springfield himself, some say that it is that Springfiled which the Simpsons recide in.I once read that Springfield is the most common name for a town in the US and was therefore taken by Matt Groening (or whoever chose the name).