Can you solve the troll’s paradox riddle? - Dan Finkel
3,462,686 Views
1,508 Questions Answered
TEDEd Animation
Let’s Begin…
You and your brother have discovered another realm and set off exploring the new wonderful world. Along the way, you see a troll catching creatures in an enormous net. The troll agrees to release the creatures if you can come up with a statement that is both truth and false. Can you come up with the correct sentence and force the troll to release them? Dan Finkel shows how.
Create and share a new lesson based on this one.
Additional Resources for you to Explore
How much more coercive can you get with coercive logic? Can you think of a way to get the troll to dance around or cluck like a chicken if it has to act according to the rules it set out? What are the limits of coercive logic?
About TED-Ed Animations
TED-Ed Animations feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed Animation? Nominate yourself here »
Meet The Creators
- Educator
- Daniel Finkel
- Director
- Igor Coric, Nemanja Petrovic
- Narrator
- Addison Anderson
- Producer
- Milica Lapcevic
- Content Producer
- Gerta Xhelo
