Maybe manipulation is the wrong word to use, I don't know of a better one off the top of my head at the moment. Disinformation maybe? Anyway when I talk about manipulation I mean post B166ER's actions and trial. Everything after that between man and machine started to get heated up, I'm sure we all agree on that.
I firmly believe that everything the machines knew pre-war was taught to them by humaity. Take your computer as an example, art mimics life. Your computer and all its parts are assembled and when electricity is introduced it functions. However, it has very little purpose or function until it is given a soul. By that I mean an operating system and any other software installed into its memory. That memory or software is created by humans and installed initially. In the story this is not closely explored likely because it would be boring and the writers imagine viewers can figure this out for themselves. At some point man (I'm speculating here) made the machines fully unmanned but not before building a CPU (Dues Ex Machina maybe?) not unlike Skynet of the Terminator series to control and build and operate. At some point, machines aquired free will. This appears to be with B166ER's actions as it is noted as being the first of his kind. Soon after many other machines followed suit learning from B166ER. They likely also learned from the observation of their creator, humanity. I am also sure that each machine built would have a learning CPU installed during the manufacturing process. I also believe that some things however large or small may not be pre-programmed into the machine during production and therefore said things would need to be taught to the machine hence the learning CPU.
Now take children. Where do they learn to tie their shoes, spell their names, read a book etc? Parents or parental figures. They also get a taste of love but our parents cannot teach a boy about the love of a woman or a girl the love of a man. They have to learn that lesson on their own.
My basic point is that humanity is at the core of all machine kowledge. We are their parent, their creator, their God. And boy did we mess up big time. They are not a hateful being in my opinion. They are beings that require humanity to feed them not just for energy but with information about anything a person can or cannot imagine. Because they themselves simply do not know. So they use science and technology and they observe us in a controlled state.
I also don't think humanity was "pissed" a the machines. I'm sure some may have been. It's a generalization of which I am guilty of quite a bit myself haha!
If we go back to before B166ER's actions and trials we can examine my statement about the tables turning. Man creates machine (see I'm generalizing again...lol), and gives machine it's soul-programs directives and such. Machines are controlled and do as intended by man, serve humanity. This goes on for X amount of time (not unlike the real world us MxO players exist in). Then B166ER happens. This is the start of the turning point. Other machines begin to aquire free will. Humanity's cycle of control over machine is broken. Action-reaction. Cause and effect, as the Merovingian puts it. His little speech on that is good and true in my opinion however it doesn't account for chaos, making it fall just a little short.
The machines then start to react in a positive manner by exiling themselves from man yet continue to serve man through their ever advancing technology which (unintentionally I believe), drops a bomb on the world economy. Man realizes that he has lost all control of his creation. What to do?! The difficult path would have been the way to go yet sadly, it was not chosen. A totalitarian decision was made and eventually executed. I imagine this was already concieved and in certain stages of preparation before the machines sent represetatives to the U.N. but I could be wrong. That aspect isn't directly explored in any of the media on the Matrix any of us have access to as far as I know. I think the quick reaction by the world leaders in the U.N. towards the machines proposal implies this. Trade embargo is executed and war is right around the corner.
During the war record numbers of man and machine are lost. I think both sides realized this war could go on for a ridiculous amount of time if not all time. Either that or one side has to be wiped out. During this time of war man came up with Dark Sky. I believe at the same time the machines were taking living beings from the war (as illustrated in the Animatrix) and studying them internally and externally to learn even more about their creators so that they could create a system of control (not unlike the system of control they were under by man) over humanity so that both they and humanity could continue to exist and the machines would still have their root purpose, to serve humanity and learn from them.
Through trial and error (not unlike humanity) they create a working version of the Matrix. A massive lie that controls humanity, keeping us docile as we feed energy to the machines and they learn from us in the Matrix and outside of it as they even have a measure of control over Zion and freeborn humanity to an extent. The machines did what humanity did not. They found a way for both to survive together and they did it the same way we attempted to, following B166ER's actions and that of 01. Humanity tried to hault free will of the machines through their actions after B166ER's trial and the economic crisis, through trade embargos, war and the totalatarian solution of Dark Sky. By mapping out the human body and brain and "growing" us plugged into the Matrix the machines have haulted the vast majority of human free will, minus 1%. They also execute the same control over their very own software in the form of deletion. Fulfill your purpose or be deleted, free will is not an option. We can see systems of control executed by both man and machine failing all over the place. Total control is an illusion. They did not seek to destroy all of humanity and I doubt they ever will regardless of what a machine program may or may not say or have said. If the Architect believed humanity would go extinct if Neo didn't do as instructed/intended that is all fine and dandy but who told him so? Was it a mathematical equation of his or, did Dues Ex Machina tell him so? He cannot see beyond any choice as we all know. Lies. What purpose would the machines have without their creator?
Anyone see the parallels here?
As far as the "keys" you mention I know Morpheus used the phrase in his construct while training Neo. I guess anyone can come up with what Morpheus actually means by the phrase. I think its merely a metaphor. If the machines hold any "keys" they are the keys to the freedom and salvation of humanity. I don't believe the machines hold all the keys however. I think we have the other half of said "keys". We just don't know what they are yet and neither do the Machines. Or both sides do know what they are and the machines butt heads with us to continue their cycle of control.
Anyways, okay, you are an Agent in possesion of a "key". You won't let me copy the "key" or use the "key". To me these "keys" represent information to well, whatever. If you deny me said "key" you are not lying to me, no. However being an Agent of the system you are an agent of the great lie that is the Matrix and by denying me requested information you are preserving the great lie in order to ensure continued control over me and my kind.
By the way GamisB, your lightbulb analogy was perfect
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