TED-Ed: Can you solve the time travel riddle? - Dan Finkel

The video tutorial explores a scenario where a professor accidentally steps through a time portal, and the viewer must use chrono-nodules to create a new portal to return to the present. The tutorial explains how nodules connect via tachyon entanglement to form red or blue triangles, which open time doorways. It discusses the minimum number of nodules needed, introducing Ramsey Theory to explain why six nodules are sufficient to ensure a triangle is formed. The video concludes with a proof of this concept and a brief reflection on the experience.

Describe the process of how activating the sixth nodule guarantees a red or blue triangle.

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What happens if all connections between the three nodules are red?

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