TED-Ed: Can you solve the time traveling car riddle? | Daniel Finkel

In this video, you and the Professor must fix a time travel mishap to prevent the universe from collapsing. After a crash, you need to find two locations on Earth where you can drive a mile south, east, and north to return to your starting point. The North Pole and a circle near the South Pole provide solutions. By using Earth's spherical nature, you place time gates and successfully merge timelines, saving the universe.

Explain how the North Pole can be used to solve the time travel problem.

What are the implications of having multiple possible starting points for the time gates?