Como todas as versões do Neo poderiam ser idênticas?

The machines have no incentive to purposefully create new Ones. If they already knew the genetic material of Neo (resp. the 1st One) would create an anomaly (a One), again and again, they would certainly stop cloning that particular person. Also this is utterly incompatible with what the Oracle says. The anomalies are incarnations of humans rejecting the system, thus they occur naturally (or lets rather say automatically). So your cloning theory is out of the picture.

It has never ever been even hinted that the RSI of humans would be largely different from their physical appearance in the "real world". Since the Ones are not clones (and by induction their parents, grand parents and so on), their physical appearance is certainly different from Neo's. Thus their RSI must necessarily also differ from Neo's.

What we can see on the screens looks exactly like Neo (duh). However, the Architect never explicitly states: "These are recordings of your predecessors". He indicates however, that what is shown on the monitors are the reações of Neo's predecessors.

What works Out-of-Universe, seems to be a likely explanation In-Universe; Mapping the reactions of the previous anomalies to the appearance of the current one makes it easier for the audience to understand what the Architect is trying to tell telling Neo. He is nothing special, just another iteration (we later learn that this is only partially true, but I digress). The similarity of Neo's reaction to the older Ones' becomes more apparent if you see the same face, expressing this reaction.

If we now return to the Matrix Universe, we see that the statement the Architect is making, is about the reação of the anomalies, not the sizes of their noses. This is the same statement the director wants to make, and the reason why Neo's own face (well, Keanu's) is so much better suited than the faces of the older Ones.

You can even go further and especular that these aren't actually recordings of the reactions of the older Ones, but a prediction of Neo's reaction, based on his predecessors. This would mean, the Machines were able to anticipate the most probable reactions Neo could have -- maybe even with help of the Oracle who got to know Neo quite well.

However, it should be noted novamente that the last paragraph is pure speculation and most likely impossible to either prove or debunk.

The way I've always interpreted that scene was that the monitors were showing all the possible reactions the atual Neo would exhibit when faced with the architects revelations.

First, a couple of quotes from the end of The Matrix Reloaded. The Architect says:

Though the process has altered your consciousness, you remain irrevocably human.

...

Your five predecessors were, by design, based on a similar predication, a contingent affirmation that was meant to create a profound attachment to the rest of your species, facilitating the function of the One.

As the Architect says, the One is a necessary part of the system of control of the Matrix. Each iteration of the war has the One show up, which sets into motion the "end of the war", which is in fact just destroying all the free humans. Then the cycle begins again, eventually the One shows up, ends the cycle, and it starts again. The behavior and arrival of The One isn't something that the machines can leave to chance.

Morpheus gives a speech which speaks to his own existence. Throughout the first two movies, he often speaks of destiny, especially his and Neo's. The mission to disable the systems protecting the door to The Source is what he was meant to do, which he speaks to as being providence that they had 3 ships and 3 objectives. After everything he's done - being freed, fighting the machines, learning he will find The One - the thing that actually matters is helping The One get to The Source. So I think this means his role in the war is really to find and guide The One.

The Architect says the difference in this Neo is that he was programmed to feel love for Trinity. This is a more personal expression of the programming that all Ones are given, which is a profound sense of connection to the rest of humanity. This normally ensures that the One chooses to reset the cycle instead of choosing to let humanity die. As part of this experiment, just as with Morpheus, the machines couldn't leave the role of Neo's love to chance. So I think Trinity is also part of the design of this iteration of the war. She was provided with the guidance from The Oracle that she would fall for the One, and so she ends up falling for the One.

The Architect also reveals The Oracle to not be a psychic guide to the free humans, but rather a program that helped design the Matrix. Given Neo, Morpheus, and Trinity's crucial involvement in the war (in previous iterations, it would normally just be Neo and Morpheus), I think they were all created by the machines. This presumably means genetically engineered, mentally prepared, and perhaps given neural implants that grant the machines access to their mental and physical states. The implants that I'm proposing would allow Neo to have the dreams of Trinity's death in The Matrix Reloaded fed to him by the machines once they had predicted the specifics of the mission to disable the building, along with providing a connection for him to stop the Sentinels at the end of the film. The Oracle is also able to effectively read their minds to provide them with the exactly correct influence at the exactly correct time to guide them on their paths.

In short, the Neos all look identical because they were built that way by the machines. The physical appearance of them is only a minor part of their performance (setting aside the allegorical significance of him being a white male), so the machines built them physically identical. In each cycle, adjustments are presumably made to the mental preparation of The One and/or the circumstances of his contribution to the war, which lead to the different reactions each of the Neos had on The Architect's screens.

Those monitors are exhibiting different sides of NEO'S thoughts - as in KEANU REEVES NEO, THOMAS ANDERSON NEO. THey are all how Neo COULD react in that situation. How is responding to the architects revelations of the matrix and the TRUE PURPOSE of the one, ANGER DENIAL, FRUSTRATION, etc etc.

If you watch, when he says 'either no one told me or no one knows' the camera ENTERS that particular scene meaning they chose to FOLLOW THAT PARTICULAR NEO REACTION. THEY all will lead to the EXACT same choice though. because as you can see. When trinity comes up EVERY SINGLE NEO REACTION in the room is the same. He chooses to go save trinity instead of being the 'saviour of zion'. So no matter what reaction Neo has to the architects revelations and whichever one the film followed, ultimately it doesn't matter because Neo will make the same decision by the end of it.

Its AMAZING.

This question reminds me of an interesting answer (the accepted answer and even the second one) from this question: In “The Matrix - Revolutions”, how does Neo stop the machine weapons in the real world?.

Taken that theory in consideration, it could be that all 5 Neo are the residual self image of his past versions. And so até in the hypothetically real world - which would be then just another layer of the Matrix.

I believe all the Neo's on the screen aren't the ones before but all the possible responses he could have. The architect has to "balance the equation" so knowing all the responses Neo would say helps him equal everything out. That's why when Neo has to pick a door all the Neo's on the screen head for the same door also( saving Trinity) if it where the other "ones" and I remind you there where only five not including Neo why so many screens? There would only be a need for five. Also all the other "ones" made the choice to restart civilization by picking 23(not sure if that's the correct number) people to live, Neo made the opposite choice so the screens would move in the opposite direction

As others have said, I believe the reactions on the monitors are meant to represent the Architect's predictions about Neo's response (or the predictions of some algorithm designed by the Architect, if there's a difference), not the "Ones" from previous cycles. This would fit with the Architect's habit of trying to anticipate what Neo will do next (lines like 'while your first question may be the most pertinent, you may or may not realize it is also the most irrelevant' and 'But we already know what you're going to do, don't we? Already I can see the chain reaction, the chemical precursors that signal the onset of emotion, designed specifically to overwhelm logic, and reason'). It would also fit with the scene where Neo yells "bullshit!" and all the images on the screen do too, and the Architect comments "Denial is the most predictable of all human responses." Finally, it would fit with the scene towards the beginning of their meeting where the Architect was talking about the systemic "anomaly", and all the images on the screen give angry rebellious responses like "You can't control me!" and "You can't make me do anything!", and after observing these images the real Neo comments "Choice. The problem is choice."

I think the aspect that often misleads people is that after the Architect says "I prefer counting from the emergence of one integral anomaly to the emergence of the next, in which case this is the sixth version", we hear various Neos on the screen say lower numbers, which makes people conclude that these are old recordings of other Ones reacting to the Architect saying "this is the __ version" where __ was some lower number. But I think what's actually happening here is that one possible reaction Neo might make would be to mockingly count up from one to five. Go to just after 2:10 in the youtube video of the scene below, or 1:51:50 on the US blu ray, and listen carefully to the numbers being spoken:

For one thing, they are in order, and in spoken in the same flat rhythmic way, like someone counting aloud: "one, two, three, four, five" (there may be a 'six' after that, it's hard to tell). Also, although there is a cut as you hear "one", for the numbers two through five you can see that at the moment it's spoken, one of the Neos on the screens is holding up the same number of fingers, and then the image on the screen where he was holding up those fingers resets, so that would fit with the idea that it's just a single scenario of Neo counting up, but chopped up and displayed on different screens.

There's also the fact that in some shots of the screens, there seem to be more than six different reactions shown--for example, try pausing at 2:36 in the youtube video, or 1:52:14 on the blu ray, showing Neo in a bunch of distinct aggressive poses. I suppose you could imagine that some of these are just chopped-up versions of a series of aggressive gestures by a single previous One, but if you accept that a single reaction can be chopped up and displayed on different monitors, then the fact that he previously spoke different numbers could just be a single counting sequence as I suggested above.

As a final bit of evidence, there is the scene where the Architect offers Neo a choice between two doors, with the door on Neo's right (the viewer's left) allowing him to return to the "source" and reboot the Matrix as previous Ones had done, and the door on Neo's left (the viewer's right) allowing him to enter the Matrix to save Trinity, which the Architect had said would "result in a cataclysmic system crash killing everyone connected to the matrix, which coupled with the extermination of Zion will ultimately result in the extinction of the entire human race." Neo, of course, chooses the door on his left, so the viewer sees him turning to the right...and all the images on the screen turn the same way! What's more, if you watch carefully from about 1:57:18-1:57:19 on the blu ray, they lift their head to begin turning slightly antes the real Neo does, but then they begin turning their head to the left (the viewer's right) slightly depois de the real Neo does, so it can't just be that the Architect has altered the function of the screens to show a live playback of what the real Neo is doing. The fact that they all turn in the same direction as the real Neo isn't consistent with them being previous Ones, but it is consistent with them being predictions about his behavior, since the Architect already seemed to have been resigned to the fact that he was going to make this choice with the comment "Already I can see the chain reaction, the chemical precursors that signal the onset of emotion, designed specifically to overwhelm logic, and reason."

Update: I picked up a set of the official Matrix movie screenplays for help with Matrix-related questions, and I think the Reloaded script makes it pretty clear that the images on the screen were não intended to be "Ones" from previous cycles. For one thing, the non-dialogue, scene-setting parts of the script refer to the images on the screen as "Neos", and their lines are always headed "NEO". But more definitively, after the Architect's line that "this is the sixth version", the script reads:

The Neos respond in a barrage.

            NEO                                             NEO
There were five Ones before me!          That's impossible. It doesn't make sense.

            NEO                                             NEO  
You're lying. This is bullshit.                          I'm afraid.

            NEO                                             NEO 
      If that's true...                              How could that be?

                                 NEO  
               There are only two possible explanations...

We move towards a specific Neo, centered among the others, closing on a single line of thought.

                                NEO  
               ...either no one told me, or no one knows.

I've tried to reproduce the script's formatting above--all the "Neo" lines exceto the "There are only two possible explanations..." and "...either no one told me, or no one knows" are printed off-center in the screeplay, as are all other examples of lines from Neos on the screens that are different from the lines of the real Neo (whereas the lines of the real Neo are centered on the page, along with those of other characters like the Architect). So this makes it clear that "There were five Ones before me!" was one of the lines scripted for a screen-image-Neo (and the counting of other numbers was apparently unscripted), which fits with the idea that the images on the screen were meant to be predictions about Neo's reactions to the Architect's lines, but it não fit with the theory that they were meant to be Ones from previous cycles, since for the previous Ones there would have been less than five before them.

The conclusion is that "the real world" is really just the Matrix. The Architect mentions that the first version of the Matrix was too perfect. They found out that people needed a choice "even if only on an unconcious level" the Architect says. He said we've destroyed Zion 5 times and they've become very good at it. Because the "real world" or the Matrix is the choice. Thus Neo is just another computer program. If you remember at the end of the films, the little girl creates a rainbow. She's basically God in the Matrix. That's why she was so important. That's also why Neo could stop the sentinels in "the real world". Because they are still in the Matrix. That's the big show from the machines. People that don't need anything in their lives just live out a normal life. The other people that would have subconsciously rejected the Matrix and died in their pod, are given the other scenario. That they can escape the Matrix and live in "the real world". We basically find that out in the end scene with the little girl and the Oracle.

I think the screens are about CHOICES: all possible reactions he can CHOOSE after every Architect's action. That's why he looks to all of them and realize that "the problem is choice!"

The Matrix is a visualization. We never see the real body of Neo since he never leaves the real Matrix. Anything in the movies (the earth surface, the body farms, Zion, the events "inside" the Matrix) - all that happens in the "real" Matrix.

Since Neo never leaves the "real" matrix, we never see his real body. Why invent a new icon/symbol when you already have one?