Indeed vi are dual.

We interact with the world in similar way as circuits interact with each other. The individual is manifested at various levels...right from electron to a complex processor.Well there is a school of thought which continues to argue that electron is a male and hole is a female (figuretively too!).Well hole is a lot heavier, slower than electron. On the other hand there are people discussing Nmos is male and Pmos is a female. I do not want to get into the details and get my hands 'dirty'.All i can say is its woman-on-top all over the world.

We can bring in the dual nature of an individual (pronounced: indeed vi are dual) by starting to think each of it as a signal. He takes birth at t=0, with some DC value (some say its random, but i feel its determined by the planetary positions at the time of birth!).All through the life, he gets affected by various conditions, noise from various sources (his own, from friends, from god and everywhere) gives his otherwise dull life (call it DC) a spice to wonder about. He has his own highs and lows. Gets saturated (with spirits) when he is on a high, needs a buddy by his side when he is low. After observing a signal for enough time, you can split him into various frequencies. He has a dull side, high energy side, witty side, angry side....all in various bands, with different amplitudes.

In the journey, he gets coupled with other signals.Some of his frequencies match with others' and they end up spending time together.Helping each other in Hi's and Lo's..Some signals stay through out the life. But each signal has a complementary differential signal.Though it looks like they are of different amplitude, its only matter of time that they understand they have a common mode.Both signals go around each other all the time, have similar frequency components.The true strength comes into picture when confronted with noise. A perfect complementary signal is totally immune to noise (from outside world), protecting their information carefully. To begin with, one is tagged DP, other DN. But in the long run it doesnt really matter which is positive and which is negative.

Some signals think they are just single ended ones. They feel completely asynchronous with every other signal. Their amplitude makes them feel like king of the lane.They forget that they do have a complementary signal just designed to get coupled. But boy, arent they susceptible to noise. Thats the time when they are supposed to bring down their amplitude and start looking for their differential partner. Its just a matter of adjusting its skew and voila! it feels perfectly in tune with another signal. An eternal bliss, two signals dancing with each other paying deaf ear to all the noise in the world. Thats the time when no one needs to look up to god and ask "Lock Kiya Jaye?".Indeed we are dual.

May be it requires another stream of thoughts to discuss the mismatch effects and the systems' perspective of Individual.