I’m a huge fan of science fiction movies and I think part of the attraction is special effects, more specifically practical effects. CGI can be a tool for fantastic visions in movies (ex: TRON, Avatar) but a practical effect is a real, physical thing in an actor’s hands while they are shooting a movie. One side of practical effects is the world of fandom and at the opposite end are the people who make movies like Blade Runner 2049. (Probably some spoilers in this but if you haven’t seen 2049 yet now you have two problems.)