imagine you meet Rick Astley. In his possession is a copy of the dvd from the Disney Pixar movie 'Up'. Assume you were to ask him for his dvd. Rick Astley claims that he will never give you up, but by not giving you up he's letting you down, which he also claims he'll never do. Along with this if Rick Astley were to do neither and just walk away instead, this would also be a problem because he claims that he'll never say goodbye and desert you. If none of these options seem viable and Rick Astley instead decides to kill you it also wouldn't work, because he will never hurt you. He can't lie about not owning up because he cannot tell a lie. He cannot deny the paradox because he knows the rules and so do i. This is the Rick Astley paradox.