What If the Moon Disappeared Overnight?
• 5 min read
Tides shrink to a third, nights go properly dark, and Earth starts wobbling like a drunk compass. Here's what we lose.
Daily thought experiments, philosophical puzzles, and impossible scenarios explored in depth. One question at a time.
Latest Questions
What If Everyone on Earth Jumped at the Same Time?
• 3 min read
Eight billion people, one coordinated leap. Would the planet notice? The answer involves more crowd crush than cosmic physics.
What If Humans Could Photosynthesize?
• 4 min read
Green-skinned, sun-hungry humans who never need breakfast. How much energy would we actually get, and would it change civilisation?
What If Gravity Suddenly Reversed?
• 3 min read
Everything not bolted down launches skyward. The oceans lift off the seabed. And that's just the first second.