While you're at it, read this too: http://www.hard-light.net/forums/index.php/topic,37231.75.html
And the subspace-damage theory is non-canon (maybe from the manifesto? I read it some months ago, so I don't quite remember...) and the supernova-dimensionportal is a SPECULATION of said admiral. The subspace-birth-thingy is also stated in the link - where it came from, and why it isn't canon truth (it's a SPECULATION, again... only from the Ancients this time).
Not wanting to destroy any ideas, of course. You're free to assume in your campaign whatever you want (and I'll have fun reading/playing them
) . Just don't say it's canon.