altnameJag said:
What's the statement, here? Are you saying that nova cannons shouldn't be able to kill planets? That they should, but they don't? That they do, and it's ridiculous?
Again, it's just an internal contradiction of the setting. In universe, weaponry capable of wiping out the life on a planet is carefully controlled and requires the explicit approval of one of a handful of super-elite agents in order to use. The problem is that in real physics terms any weapon in 40k space combat could destroy a planet, or at least end all life on it. The basic guns on a cruiser could do it.
Anyway.. these questions are pretty pointless because both settings are governed by rules of narrative convenience. The Federation are completely outclassed by the Borg in one episode, for example, then in the next (well, the next borg episode) the Enterprise crew builds a virus which can wipe out the entire species in what is implied to be no more than a few days. The important thing to remember is that much as people hate on Star Trek for its techno-babble, it's really a show about ethical questions. The creation of that virus raised an interesting ethical problem, therefore it was allowed to happen.
As for 40k.. 40k, narratively, is about selling toys. The Imperium wins whenever a new Imperial codex gets released.
Okay, I'll be less cynical.. but regardless, 40k is a universe which works on 80s metal album cover rules. It's a simple place which isn't really about ethical questions or complex solutions but what would be really
extreme or
badass. It's also one of the least well-preserved canons around, at this point, due to the habit of contracting out to professional writers who tend to put their own spin on things. Space marines can either be generic cannon fodder or invincible supermen. The imperial fleet is either the greatest in the galaxy and composed of awesome ships fuelled by ancient human superscience, or it's getting its ass kicked by a bunch of myopic space cows who've been building spaceships for about a century at most. It all depends whose doing the writing.