Ultimately in FT, it will come down to the story, and what you want to tell and how to do it.
I'm going to state, however, that there is a place where story, and logic, get in the way of each other and that NS tends to read like story overrides logic most often than not. I personally don't like this because when someone settles on a story they want to write, but has no limitations, they may write cheaply and with disregard for what could actually happen. They'll create plot-holes and logical fallacies and most often than not, this will result in a poor story, all because there was no sense of accountability towards the fidelity of the story. When I want to make something more true to life, I go and read on it, argue it, meditate on it... I don't just run with it. I get more from writing doing this. These are the advantages of writing within limitations your imagination didn't set, but rather reality has set. When you deal with a technology that exists outside of our current scope, by all means build it to suit your story first and then reality second, but realize that sometimes there are some technologies that don't change the nature of set rules and habits.
