In all seriousness, it is interesting what FusedInMetal claimed - prior to Bask bumping the thread, I don't remember reading about this claim of plagiarism regarding the storyline of The Astonishing. Anybody ever check out Mindcage's album and can comment on it?
Either way, it is curious that The Astonishing and Mindcage's album (assuming the storyline is very similar to that of TA) both borrow from Rush's 2112, which in turn borrowed heavily from Ayn Rand's book Anthem. Altho at least Neil Peart did the right thing and acknowledged her even though he hadn't intended for the lyrics of 2112 to mirror Anthem's story so closely (he recognized it after the fact).