But honestly, if you do a rigorous survey of my work, I'll bet you'll find that biology is a theme far more often than physical science.
Change is the principal feature of our age and literature should explore how people deal with it. The best science fiction does that, head-on.
Predicting has a spotty record in science fiction. I've had some failures. On the other hand, I also predicted the fall of the Berlin Wall and the rise of fundamentalist Islam... and I'm not happy to be right in all of those cases.
There's no doubt that scientific training helps many authors to write better science fiction. And yet, several of the very best were English majors who could not parse a differential equation to save their lives.
It is said that power corrupts, but actually it's more true that power attracts the corruptible. The sane are usually attracted by other things than power.
The worst mistake of first contact, made throughout history by individuals on both sides of every new encounter, has been the unfortunate habit of making assumptions. It often proved fatal.
My education and background thoroughly inform my writing.