An assemblage of the most gifted minds in the world were all posed the following question: "What is 2 * 2 ?" Philosopher: "But what do you mean by 2 * 2 ?" The engineer whips out his slide rule (so it's old) and shuffles it back and forth, and finally announces "3.99". The physicist consults his technical references, sets up the problem on his computer, and announces "it lies between 3.99 and 4.01". The mathematician cogitates for a while, oblivious to the rest of the world, then announces: "I don't know what the answer is, but I can tell you, an answer exists!". Politician: Closes all the doors and windows, looks around carefully, then whispers "What do you want it to be?"