What does 2 + 2 make?
The mathematician will say 4
The chemist will say between 3.95 and 4.05
The lawyer will want to know what their fee will be for providing the information
The accountant will say the answer is 4, but I’m sure you can manage with 1.6
The engineer will say the answer is 4 but just to be on the safe side let’s say 16.