The issue is people get used to repeated stimulus. Trench warfare is about as stressful as things get, yet eventually soldiers would nap and play card games while being shelled.
For science fiction you need enough familiarity for people to care without becoming stale. Which generally means copying from other science fiction to the point where people just accept things like planets with uniform weather and ecosystems.
For science fiction you need enough familiarity for people to care without becoming stale. Which generally means copying from other science fiction to the point where people just accept things like planets with uniform weather and ecosystems.