I'm not an engineer but I can tell you with certainty that writing books or movies (fiction) is rocket science.
Hardly. "Rocket science" requires years of study and work, and like all STEM endeavors, while there isn't always a *right* answer, there are infinite *wrong* answers. Writing a book? Ummm... the "Twilight" series, "50 Shades of Gray," even "Harry Potter" show that you don't need to have gone to a university for years to get the basic training to simply begin to understand your field. Steven King has written a library's full of stuff, and his training was to become a teacher, not an author. He started writing just cuz. I've read interviews where he went to see the movie "Cujo" just to find out what the plot was because he was so drunk when he wrote the book that he didn't remember it. I can assure you that drunk rocket science ain't a thing. Literature is full of authors drunk or stoned off their asses. Rocket science, and aerospace science and engineering in general, are *not* full of drunks and addicts whacked out of their gourds while on the job. Because "mind altering" is an immediate track to an infinity of "wrong" in STEM.
I have written a handful of novels myself. Writing is *easy.* Getting published is hard, but one can self-publish and if one is good, lucky and good at marketing, you can be successful in a way no rocket scientist ever could be.