It's an interesting theory. I've often wondered if it's just a giant light.. one twang on the pull cord - it's the sun, give it another twang...it's the moon. Kind of an on/off switch.
I am bending towards Snaggers opinion on the matter tho. There could be considerable meltage happening on the cheese front.
''I've often wondered if it's just a giant light.''
Oh c'mon... 'lit from within'?
1) That's as daft as suggesting that the light is in fact, from 'another' source - possibly a giant star (yeah, right) - and is merely reflecting 'off' the Earth...
2) Everybody knows the Earth is flat... where would the bulbs fit?
Of course it's flat, this is just a board game for something much greater (in size) than ourselves.
Not sure if the Scalextric is as advanced as it could be, saying that, at least we're not suffering the 'fix the fuzzy bit on the bottom of the car' thing anymore. But anyway, have you ever played Sim City? :p