A first-grade teacher, on the first day of class, gave her pupils a little quiz to check on their aspirations & aptitudes:

(1) 1 + 1 = ?
(2) What do you want to be when you grow up?

She got back the following papers:

(1) 2.
(2) A schoolteacher.

(1) 10 binary; 2 octal, decimal, or hex.
(2) A computer scientist.

(1) 2, unless you are working in a field of characteristic 0.
(2) A mathematician.

(1) You haven't told me how accurately those 1's were measured.
(2) An engineer.

(1) What answer do you want?
(2) An accountant.