same words are univocal unless equivocation is indicated
   (linguistic inertia). Dramatic notion.* Seems simple but it's
   profound.* Words mean exactly the same thing unless otherwise
   indicated.* He caught the fish.* He caught a cold.* "caught"
   means exactly the same thing. It doesn't? Ok.* Now explain
   what's moved.* What caused caught to change meaning?* Simple but
   profound.