I haven’t seen the movie. I can’t get over how much of a retread it is of Ep. IV. I expected it to be bad, but even in my negativity I didn’t expect such massive rehashing!
Anyhow, let’s talk about the Death Star and Starkiller Base. Both are unrealistic, but the latter is especially so.
It apparently has a diameter of 120 km:
• It’s so huge, yet the heroes are able to accomplish all their tasks as if they were running around a fairly small base (I first saw this on Cracked.com and thought, That’s so true!). 120 km across means that, to get anywhere, you’d have hop in a jeep or something and take up to a few hours to get there.
• It’s not really clear why even a weapon that powerful would require such a large support system. It would seem that the weapon, its power source, and fairly small base for the operations and defense team would be enough. It does not end up sending out very many TIE fighters in its defense.
• Its fatal weakness is highly convenient, isn’t it?
The thing that I do find realistic enough about this base is that the Empire could afford to construct it. It does stretch the imagination with it being so big and in outer space, but the Empire is massive and has lots of resources. (What’s less realistic is the notion that something like the Rebellion could actually take the Empire on and win, but that’s another post.
The Starkiller Base has all of the unrealistic features of the Death Star PLUS the the totally unrealistic notion that something like the First Order could actually construct it! The First Order is not in control of everything like the Empire. It doesn’t have the resources, especially since the new base is a lot bigger than even the Death Star! It’s as if the writers think that such ultra-massive capital can just pop into being with a little spit and chewing gum. It’s just dumb as hell.
And the fact that they had to “go there” and even involve anything like a Death Star is such piss-poor, sub-fan-fic-level storytelling, that my mind is blown.