Q: So it sounds like sci-fi space warfare is transplanted naval warfare, but a very mixed bag when it comes to realism?
A: It is kind of a mixed bag, but "realistic" is a word that I have problems with. For a lot of these models, the assumption drives the conclusion. The ability of your laser cannon drives a lot of the problem. If you have a faster-than-light propulsion or communications capability, that also drives the problem. If you do a fairly simple extrapolation of current technology, what you end up with is space combat as sort of ponderous ballet with shots fired at long distance at fairly fragile targets where you have to predict where the target is going to be. You don't end up with space fighters. You don't end up with lots of armaments. On the other hand, if you look at the modern U.S. Navy and then go back 300 years, there are things now that would be incomprehensible to people back then. They would get some parts, but not others. Our scientific knowledge is greater than ever in human history, so there's a greater chance that we have a complete understanding of the physics in the future. But then again, you don't know what you don't know. I remember seeing a submarine book when I was in high school. A Jules Verne type of book, with a submarine with a sled that hung underneath the sub, with some kind of contact sensor to let you know if you were close to the bottom. They didn't know about sonar. It was a perfectly logical, perfectly clever solution to a problem. It also turned out to be perfectly wrong.
Q: What about ships turning in space like airplanes?