Philosophy
The Liar Paradox and Self-Reference Issues
Quick fact
The Liar Paradox is over 2,500 years old, attributed to the ancient Greek philosopher Epimenides of Crete, who said 'All Cretans are liars'—a statement that paradoxically undermines itself.
Why this is interesting
We usually take 'truth' for granted. But what if a simple sentence like 'This statement is false' creates a loop that logic cannot escape?