Ancient riddles of motion and truth
Mind-bending loops of mathematics and sets
Physics and the mysteries of the cosmos
Time travel and the rules of causality
Everyday life and psychological traps
YOUR GOAL
Master of The world of paradoxes
schopenhauer An ancient Chinese philosophical text explores what happens when two absolute forces clash.
schopenhauer The Epimenides paradox shows how a simple statement can contradict its own truth value.
schopenhauer Swap every plank on a wooden ship to figure out if it remains the same.
Word origins: The English word 'paradox' comes from the ancient Greek words 'para', meaning contrary to, and 'doxa', meaning opinion or belief.
An irresolvable internal contradiction or logical impasse in an argument or theory. Zeno of Elea devised his motion puzzles in fifth century BCE Greece to demonstrate these logical deadlocks.
Whose legendary ship is used in the classic philosophical puzzle about identity and replaced parts?
The Chinese word for contradiction, 'maodun', literally translates to which two objects?
In which ancient region did the philosopher Gargi Vachaknavi use infinite regress to debate the nature of reality?
Which philosopher did Zeno of Elea seek to support with his famous paradoxes of motion?
In the Epimenides paradox, the philosopher Epimenides claimed that all people from which island are liars?
Which 1st-century CE Greek historian and biographer documented the Ship of Theseus paradox?