first and foremost ,we have to remember this:
the name 'FREESPACE' was what scientists called subspace when they first discovered it. the title of the game is also FREESPACE. games are usually named after the focus of the game. ie halo is SET on halo, homeworld is about the QUEST for the homeworld, the outforce (an old RTS game) is about an 'outforce' (kinda like a big scout party), and FREESPACE must be about FREESPACE, or subspace. (pardon the bold, its just an attention-getter

)
so, freespace is indeed about subspace. SOMETHING important happened, is happening, or did happen in subspace, which is what FS1&2 are chronicaling (sp?).
i think this:
the shivans have been watching us for quite some time. probably theyve observed us throughout our evolutioin (NOTE: this is NOT going to turn into a debate about creationism vs. evolutionism) and the shivans were appaled.
they figured we were an inferior race, and that if we were allowed to spread, we would destroy the universe in some way. worse, we would destroy subspace, which (educated guessing here...) would ahnialate not only the universe but EVERYTHING (i know how weird that sounds, but you know what i mean

what if theres more than 1 universe or something?) so they estimated our strength and tried to destroy our homeworld, which would REALLY screw us over, basically.
then, whe it was destroyed, the lucifer would signal back to the main fleet (prollly at that time some sathani) and they would come in for the kill. but we stopped them luckily (just barely...) and it cost us a lot. the shivans essentially won.
then, they waited for a while, building soem more juggernoughts and God-knows what else (thats why i think that the Gigas isnt so far-fetched as most people think. however, the EA superjugg is out of line) for a second assault.
this time, they destroyed what was the SECOND most populated place they could find.
however, they probably thought that we were building a fleet of juggs as well, so they decided to cut us off for now and build up their fleet to totally decimate the terran and vasudan races once and for all! (can yo usee a campaign forming here? :devil: hmm..*cough*FS3*cough*?)
remember what was said about them how they will send something tougher each time? logically, the next ship will be somewhat unstoppable. the GTVA better get their act together, or die.
or, it could be somewhat less impressive, like the shivans are like moths and subspace nodes are like lamps

but i dont like that theory
*sigh* all this talk of the shivan enigma is making me pine away for FS3...
