why computers never give us a wrong answer ..?

because we talk to them in a language based on logic (aka programming languages); so, there is no room for confusion ..!

or looking differently, a machine or human behavior is based on the language used; so a person's behavior is based on how vast and subjective / diplomatic language that he uses.

or people behave as per commonly used words and phrases used in a language; e.g. on Wallstreet, its common to talk about risk management, volatility & risk even if there are many interpretations of these words.

think about it ..!