What If
9M subscribers
An epic exploration of possibilities. Join Peter and explore science-based hypothetical worlds across space, technology, Earth, and prehistoric history. Each episode begins with a simple “what if” question and follows real scientific theory, physics, biology, and astronomy to see where those ideas could lead. Travel from deep space and alien planets to future technology and ancient life on Earth, and discover how small changes in science or history could reshape life, civilization, and the universe. It’s a blend of science education, imagination, and real research that helps you see our world, and the cosmos, from a fresh perspective.
What If all Glaciers Melted, INSTANTLY (Hour by Hour)
What If · 94K views · 10 hours ago
What If We Moved All 8 Billion People To Mars?
What If · 319K views · 1 month ago
What If Pangea Still Existed Today?
What If · 167K views · 7 days ago
What If All of Antarctica's Ice Suddenly Melted?
What If · 2.9M views · 1 year ago
If All Humans Vanished, How Long Until Earth Erased Every Trace Of Us?
What If · 2.4M views · 3 months ago
What If Earth Was As Big As the Sun?
What If · 377K views · Streamed 7 months ago
What If Earth Became a Type III Civilization?
What If · 1.4M views · 5 months ago