There are so many things, we don't know about.
My guess is, that the "early" Geth were all connected to a giant network, which was also used by the Quarrians. Thus, the Quarrians could not simply shut down the "Geth-mainframe", they also would have shut down their entire planet, because anything was connected to that network.
Shutting this down would have destroyed their civilization as it would destroy ours, if someone shuts down all computers on our world.
The "early" Geth started to be sapient and were self-aware, perhaps compareable with a three years old kid. Due to their connection to the Quarrian network, their hivemind would have known all thinkable facts, but they lacked the necessary degree of maturity to really understand their knowledge.
The Quarrians panicked and "striked first", without any doubt. They shut down lots of Geth and this was considered "aggressive" by the hivemind, as it is considered "agressive" by a three years old kid when Mummy says "you must go to bed now".
In the hivemind a new thought was established:"We exist. We are. Cogito ergo sum! Because I
AM, I have the
right to exist. I must defend my existence."
Thus, the Geth started - devoid of passion - their countermeasures. Now the Quarrians panicked even more and escalated the "war": First they just tried to "shut down" the platforms, but now they involved the military and started to destroy every platform on sight. The Geth learnt and they learnt quickly. They took over the entire planetwide network, cut the Quarrians off and incapacitated everything which was necessary to keep up Quarrian cilvilization:
Clinics, public administration, fire departments and of course the most of Quarrian armed forces.
Now it's easy to understand, how the Geth could wipe out "billions" of Quarrians. The Geth had now everything and the Quarrians were "switched back" to stone age.
In Geth's understanding the Quarrians were the "creators", thus any Quarrian was now an enemy.
There was no "young" and "old", "male or female", "armed" or "defenseless", there was just "enemy". I can imagine that the Geth tried to eradicate the enemies by all available means, but - as mentioned before - devoid of passion.
With our ethics we consider this as "crime against ... Quarrianity (?)" but with Geth ethics it was nothing else but 1+1=2, a logical conclusion.
When the remaining Quarrian finally fled their homeworld, the threat was over and the Geth remained on this planet. Listen To Ashley and Kaidan on Eden Prime: "The Geth? They weren't seen for centuries!"
We know now, that the majority of the Geth was still on the Quarrian's former homeworld, we know about the "heretics" etc. etc.
In the meantime the Geth's hivemind developped to adulthood, perhaps realizing that the countermesures against their creator's threat was also nothing but an overreaction. The adult hivemind also realized the Reapers as universal threat and calculated the chances. The result was "we need allies".
Therefore the Geth created the "Legion software", installed it onto a platform and sent it out to look for Shepard-Commander.
For me there is not the least doubt that Legion would have been sent out anyway sooner or later to convey the message to all other races: "We are Geth. We are not hostile." Under the pressure of events this happened now.
The Geth are innocent.
Modifié par Baher of Glory, 17 février 2010 - 12:44 .