Liar’s Paradox

Made this ‘bookmark’ demonstrating the Liar’s Paradox some time back. One side says, ‘The sentence on the OTHER side is FALSE’, while the other side says, ‘The sentence on the OTHER side is TRUE.’ What should we make of this?

Which is true? Which is false? Are both true? Are both false? Are both neither true nor false? Are both true and false? This is a simple but powerful reminder of why we should NEVER blindly believe any single-sided hearsay without looking further. This includes that read anywhere, including books, newspapers and online. (Think ‘alternative facts’ and such!)