- What If We Sunk Our Trash in the Mariana Trench?
- What If You Got Caught in a Giant Spider Web?
- What If the Universe Is Bouncing?
- Discussed: What If the Universe Is Bouncing? - with Anna Ijjas
- What If You Only Drank Coca-Cola?
- What If Covid-19 Was Made in a Lab?
- What If You Built a Tipler Cylinder?
- Discussed: What If We Became a Type II Civilization? - with Michio Kaku
- What If T-Rex Were Still Alive?
- What If You Fell Into a Pool of Hagfish?
- What If You Only Ate Raw Meat?