Has it ever struck you that basically everything you see around yourself can be categorically placed into any of the three below :
1) Positive
2) Negative
3) Neutral
Consider some examples:
1) Time can only be either of the present , the past and the future. Class divisions are an individual's perspective (being a Cancerian I tend to put everything into the positive class:)))
2) You either love somebody so deeply , or hate somebody like hell or are neutral to most of the folks in your life.
3) The food you eat may most of the time taste the same, taste really good or on rare occasions taste like sh!t.
4) The uber rich can be categorized into the positive class (or negative, depending upon your perspective), the middle class into the neutral and finally the poor into the negative class (or positive if your perspective is otherwise)
I can state many other examples that I feel confirm to my theory of 'The three possibilities to everything'.
Hell even fuzzy logic was developed to accommodative the third state between the binary ones and zeros.
Human limits know no bounds and its up to the remarkable brain to process the details and subconsciously categorize everything into the three possibilities I stated above.
I already watched "3 Idiots" three times: wanted more of Chatur's college auditorium speech scene :)