Smith again refers to Neo as “Mr. Anderson”, displaying the respect he has for the man. He also refers to the chaos he’s caused in the matrix, likening it to sprucing up an old apartment. While this line may be comical in appearance, it has relevance in that Smith was clearly unhappy in the “zoo” the matrix was before. Neo responds with the determination that Smith holds no power over him. Smith agrees with him, but he also lets Neo know the secret that Smith will win.

Smith: Can you feel it, Mr. Anderson, closing in on you? Well, I can. I really should thank you for it, after all, it was your life that taught me the purpose of all life. The purpose of life is to end.

Smith has always been fascinated by humanity (“It came to me when I tried to classify your species. I realized that you’re not actually mammals.”), here he is taunting Morpheus, yes, but is also showing a genuine pride in himself for coming to yet another revelation about humanity and life in general. The irony here is that he is blind to the truth that he has become the very thing he despised. (ex “You move to an area and you multiply until every natural resource is consumed. The only way you can survive is to spread to another area. There is another organism on this planet that follows the same pattern. Do you know what it is? A virus. Human beings are a disease, a cancer of this planet. You are a plague, and we are the cure.” Smith demonstrates an obvious disdain for mankind when he speaks those words, but by the end of the trilogy, he is doing exactly what he accuses human beings of doing- spreading until nothing is left.

Smith: Why, Mr. Anderson, why? Why, why do you do it? Why, why get up? Why keep fighting? Do you believe you're fighting for something, for more than your survival? Can you tell me what it is, do you even know? Is it freedom? Or truth? Perhaps peace? Could it be for love? Illusions, Mr. Anderson. Vagaries of perception. Temporary constructs of a feeble human intellect trying desperately to justify an existence that is without meaning or purpose. And all of them as artificial as the Matrix itself. Although, only a human mind could invent something as insipid as love. You must be able to see it, Mr. Anderson, you must know it by now! You can't win; it's pointless to keep fighting! Why, Mr. Anderson, why, why do you persist?

Neo: Because I choose to.

Remember, Smith loves purpose (“It is purpose that drives us”) and fate (“It is inevitable”). He wants to know what drives Neo. All of the things Smith mentions are ideals which Neo fought for in the past. He has freedom from the matrix, he learned the truth of the question, and he cares nothing for peace or love with Trinity gone. Trinity was half of Neo. She was both a) his purpose and b) his divine self. Neo has become everything that is good in human beings. Smith, by contrast, is everything that is bad in human beings (which is perfectly fitting because we call bad things “inhumane”, and Smith is not human). Neo goes beyond the ultimate system and is able to overcome as a human being alone.

Regarding Smith’s preoccupation with purpose/fate, Neo never really cared for such things (“I don’t like the idea that I’m not in control of my own life”). With the line “Because I choose to” (which, by the way, has been discussed to death so I will only touch it briefly here), Neo has attained perfect free will. There is no purpose for him, no causality. Another reason Neo becomes the “superman”- there is now only choice. Smith, because he IS Neo (“He’s you. Your opposite, your negative”), cannot see the future past Neo’s choice (“We can never see past the choices we don’t understand”) because he doesn’t know why Neo keeps fighting. This will prove to be Smith’s downfall.

Smith: This is my world! My world!

This line tells one just how hypocritical and [bad] human-like Smith has become. One recalls from the first Matrix that Smith hated the matrix (“I hate this place. This zoo, this prison”), yet now he fights to protect it. This is only another example of how Smith has gained the worst qualities of mankind (power, greed, hypocrisy, etc).

Smith: Wait... I've seen this. This is it, this is the end. Yes, you were laying right there, just like that, and I... I... I stand here, right here, I'm... I'm supposed to say something. I say... Everything that has a beginning has an end, Neo.

Smith is acting like a relay of the message the Oracle left for Neo. When Smith first copies onto the Oracle, somehow she shows him a future where he would win once he said this. Smith follows fate, and he himself chooses to say these words- he just doesn’t understand why he says them.

Smith: What? What did I just say? No... No, this isn't right, this can't be right. Get away from me!
Neo: What are you afraid of?
Smith/Oracle: It's a trick!
Neo: You were right, Smith. You were always right. It was inevitable.
Smith: Is it over?

Smith finally understands at a point when it is too late. He gives into his hatred for Neo without considering the consequences (another nasty human trait) and that’s that.

The ending is interpreted in several different ways. One way is that Neo and Smith cancel each other out. Another possible scenario is that Neo dies and Smith is left purposeless, but since Neo was connected directly to the source. Also, there is the theory that Neo “dies” when he is imprinted by Smith, but Deus Ex runs electrical impulses through his mind to revive him and Neo then destroys Smith the same way he did in the original. If this is the way it happened, Neo would have to sacrifice himself to stop Smith from choosing exile again. Therefore, Neo’s body would act as almost a containment for the Smith virus, effectively keeping him out of the matrix.

After Smith and Neo die, Neo’s reload code is reinserted into the matrix and the déjà vu cat shows up, officially ending the Superbrawl.