When trying to think of tech or science in my Star Wars story, I oftentimes ask myself. “Could it be done?” I look at all the science and tech that currently exists in canon and Legends and most of the time- I say “Definetely.” Even though we don’t see it; it’s probably their and certainly plausible. Shakdov thrusters? Never saw them but I’m sure Star Wars scientists could build an engine to move a star. Dyson spheres (which actually appeared in SWTOR) could be done; they would just be expensive and a waste of time to build. All genetic engineering feats can be accomplished based on what they have and any type of droid to do any function can be created. We don’t see an orgasm inducing drug (probably because it’s inappropriate), but their chemistry and desire to achieve it probably happened 100’s if not 1000’s of years before the New Republic. We don’t see everything but based on what we do see; it’s only logical that the other stuff also exists. Teleportation and time travel appeared in Legends and in Canon are only utilizable with the Force. I have to assume that in canon, they have been proven to be impossible to do scientifically or it exists in a lab and is not mainstream yet. The latter is probably what is true. Also anything to do with nanotechnology is probably child’s play and I’m sure that they are starting to go pico and femtotechnology. Intangibility is too controversial and I think remains to just be a force power. That being said.
What would be something of a challenge for a scientist to create or would be stumping them? That’s what I want my scientist to tackle. Something they have no base for and have to start literally from scratch and would be grasping at straws for.