Several scientists were all posed the question "What is 2 * 2 ?"
The engineer whips out his slide rule
¹ 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 3.98 and 4.02".
²
The mathematician cogitates for a while, then announces "I can prove an answer exists!".
The philosopher, smiling, asks "But what do you mean by 2 * 2 ?"
The logician requests to "Please define 2 * 2 more precisely."
The sociologist says "I don't know, but is was nice talking about it".
"A polygamous mating system" claims the behavioral ecologist.
"4" proudly says the medical student!
All others looking astonished: "How did you know ??" ..."I memorized it."
PoP's notes: