While I can definitely enjoy most of the fairly cheesey popular sci-fi like stargate and star trek, I really like it more when sci-fi is written so that it seems like it could actually happen one day, at least in not breaking any physical laws. Especially as the scale of what is depicted starts getting a bit extreme. Like, portraying a star empire that is basically just a historical maritime empire with the population scaled up a couple orders of magnitude, living on a few planets mostly with a couple modern cities each with starships that travel across the stars in a few hours to weeks is cool and all, but so unrealistic as to not be super exiting. On the other hand, portraying what an actual interstellar spaceship would probably have to be like, based on known physics, complete with the kind of size it would probably be and the sheer length of time it would take to travel, and the scale and age of the kind of civilization that would have the economic capacity to build and use them, while much harder to get right due to the needed attention to detail, results in something that is made all the more awe-inspiring by the knowledge that it isnt impossible for something like it to exist one day, or might even exist already, somewhere very far away.