time traveler predictions

SCIENCE

What If You Met a Time Traveler?

What If | December 28, 2025

With your support we can make our show better! Join our Patreon community: http://bit.ly/whatif-patreon If time travel is possible, why haven’t we met a single time traveler yet? And if we did meet one, how would we know they weren’t faking it? What would their time machine look like? And […]

SCIENCE

What If You Traveled One Billion Years Into the Future?

What If | August 31, 2025

If you traveled 10,000 years into the future, what would planet Earth look like? Would most of its surface be covered in volcanoes? Or would it be frozen in ice? What if you traveled even further, to one million years in the future? Would all of the oceans have evaporated? […]