- What If We Built a Stanford Torus?
- What If Giant Sloths Didn't Go Extinct?
- Discussed: What If Your Teacher Were AI?
- What If a Quasi-Star Entered Our Solar System?
- What If Everyone Farted at the Same Time?
- What If We Built a Tower to Outer Space?
- What If a Spider Crawled Into Your Body?
- What If Aliens Are Future Versions of Humans?
- Discussed: What If Aliens Are Future Humans?
- What If a Black Hole Ate the Sun?
- What If You Owned a Time Machine?