What is life?

Any one thinking this is some text book philosophical discussion is in for a shock.
I cant write on some thing like that. This is a scientific discussion on what life is?

I encourage people to write back on what you think about life after reading this blog.

Scientifically thinking tell me what is the difference between a 'non living' object and a 'living' on?
People usually say something like i living things can feel touch and do things on their own.
But if that were true then i would have to say that artificial intelligence coupled with an advanced sensor robot would be life.
Let me compare for u the different types of things that exist in this universe.

First up the simplest of things i.e., all the objects around us. they are composed of atoms or molecules of simple substances or combinations of them. They have a very simple structure no complications at all with them.
They seem to be very different to us humans or other 'life' around. Think again. What are we?
We are just another combination of elements and molecules, aren't we?
We tend to be more complicated than a lot of those mere objects sure but complication alone cannot define life. Where is the innate difference?
I have been thinking abt this for sum time now.
We have started off from simple origins just like everything else in this universe.
What has made us the way we are? Everything has an evolution. How was 'life' first first formed?
What is the most primitive form of life?
In biology texts you will have read it as being a virus. It is funny but after coming to my present level of understanding of this subject, i seem to come to the same conclusion.
I will give my present understanding of life a little later. But this blog was primarily meant as a discussion forum. Thus ill wait for people to think abt this complicated issue and post their messages.