yes, necessity is the mother of invention. every necessity is born from the mind of the human.need of the human. all over the history inventions are made easy for those worked hard. when few humans carry a person in the palanquin when transport is difficult human thought for easy method..that's necessity.. the wheel invented using with animals. When animals thought to get rid of that...everything gone wild... animals are freed from transport and many things came out. many things going to happen. everything will change. the philosophy, culture, belief, what was yesterday wont going to be tommorow. Necessity is the science. we are bugs with ego... and all that creatures we think bugs also have ego..Let us get rid of this place...we are living in some body's body..and where we live is living on someones body....and it is going to... the necessity must get rid of this game.