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Description: "One side, one edge, no way out. The Mobius strip carries the oldest self-referential paradox in logic, an elegant visual for anyone who has ever argued about truth, recursion or Godel. The liar paradox on a Mobius strip: the sentence This sentence is false loops endlessly from TRUE to FALSE. True if false, false if true. A self-referential classic of logic since Eubulides and Epimenides. For logicians, math and computer science students, philosophy teachers, puzzle lovers and fans of self-reference and paradox. A clever gift that sparks debate.
