| Type | Hypothetical universe |
| Life forms | Simple microbes • Highly advanced civilizations |
| Integration | Galactic Network of trade, politics, and culture |
| Place of origin | |
| Earth's autonomy | Retained, to some extent |
| Alternate reality | Yes |
| Prevalence of life | At least 20% of planets |
| Earth's participation | Present, with rapid progress and transformation |
