| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | alien cuisine | Present-day Earth | Alien cuisine is practically non-existent and unknown to most present-day Earth humans. | 1 |
| 2 | intergalactic travel | Present-day Earth | The concept of intergalactic travel is only theoretical and has no practical application on present-day Earth. | 1 |
| 3 | robot rights | Present-day Earth | Robots in present-day Earth are not afforded legal rights and are treated as property. | 1 |