These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: 2300 AD
Viewers Are Geniuses / Genius Bonus: In the 2300 setting, Ebers are a species who were once star-spanning, but are now recovering in a way not dissimilar to "Fallout", with ruins spread across several worlds. The adventure "Ranger" has your character meet a bunch of primitive Nomadic Ebers who adhere to the old ways in ways the other Eber nations didn't and thus have culturally-preserved knowledge that would eventually let them go back to the stars.
What's the genius bonus? Eber was the Biblical name of Noah's Great-great-great grandson, who refused to help build the Tower of Babel, and whose language was not confused like everyone else's, and thus could still speak the language of Heaven.