Stupid Science Fiction Cliches ? Can you name some ?
* Monster aliens, mindless destroyers, or rabid eaters of people who are nevertheless capable or interstellar space flight and high technology.
* Space ships that are really huge cities that come to Earth and hang in the air above our major cities. Imagine how much energy is wasted to do that rather than to just land and sit on the ground, or float in the ocean, or just orbit the planet?
* Alien technology and the insides of their ships. Do they have TV screens or buttons and levers? They always have creepy instrumentation.
* And speaking of creepy instrumentation, they also look creepy. Weird, monstrous, evil, giant teeth, or full of slime. Scarcely better than the monsters in the 1960s movies.
* Robots are always more human than the humans.
The list can probably go on and on ...