Brain-twisting paradoxes

There are paradoxes in our world that are so complicated, they can make your brain change shape. This course covers ten of the most challenging, brain-twisting paradoxes, collected across thousands of years of history from our greatest minds. Some even seem impossible—or at least, they tell us just how truly difficult certain truths are to grapple with. Take the challenge! Not only will you come out having tackled some of the world’s most mysterious problems, you’ll think differently about the world and bring these skills into your daily life.

   822 students completed this course

   80% recommend it to other students

   Teacher: John Robin


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80% of students recommend

  “So interesting. And fun. I feel like a much better cocktail party guest now!”

  “An interesting course that really made me think!”

  “Fun course that got my brain chewing on possibilities :)”


Course plan

Lesson 1. The Grandfather Paradox
Lesson 2. The Prisoner’s Dilemma
Lesson 3. Zeno’s Paradoxes
Lesson 4. Paradox of Thrift
Lesson 5. The Omnipotence Paradox
Lesson 6. The Triffin Dilemma
Lesson 7. The Mpemba Effect
Lesson 8. The Paradox of Value
Lesson 9. The Abilene Paradox
Lesson 10. The Unexpected Hanging Paradox
+ Quiz



Starting tomorrow, you will receive a new lesson straight to your inbox every morning for 10 days. Lessons take just 5 minutes to read, and each course is followed by fun, knowledge-testing quiz.



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  • Format
    One lesson delivered via email daily
  • Duration
    10 days
  • Time
    5 minutes reading a day

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