Which derives from Plato*, The Allegory of the Caveearthfriendly wrote:Hard to turn back the clock after you have taken the red pill (Matrix - another reference from that SG FB).
'Plato has Socrates describe a gathering of people who have lived chained to the wall of a cave all of their lives, facing a blank wall. The people watch shadows projected on the wall from things passing in front of a fire behind them, and they begin to give names to these shadows. The shadows are as close as the prisoners get to viewing reality. He then explains how the philosopher is like a prisoner who is freed from the cave and comes to understand that the shadows on the wall do not make up reality at all, for he can perceive the true form of reality rather than the mere shadows seen by the prisoners.
...Socrates suggests that the shadows constitute reality for the prisoners because they have never seen anything else; they do not realize that what they see are shadows of objects in front of a fire, much less that these objects are inspired by real living things outside the cave.
This is presumably where those who use the 'Red Pill analogy' see parallels with SGn '''quitters'''...>
'Plato then supposes that one prisoner is freed, being forced to turn and see the fire. The light would hurt his eyes and make it hard for him to see the objects that are casting the shadows. If he is told that what he saw before was not real but instead that the objects he is now struggling to see are, he would not believe it. In his pain, Plato continues, the freed prisoner would turn away and run back to what he can see and is accustomed to, that is the shadows of the carried objects. He writes "...it would hurt his eyes, and he would escape by turning away to the things which he was able to look at, and these he would believe to be clearer than what was being shown to him." 
Plato continues: "suppose...that someone should drag him...by force, up the rough ascent, the steep way up, and never stop until he could drag him out into the light of the sun."  The prisoner would be angry and in pain, and this would only worsen when the radiant light of the sun overwhelms his eyes and blinds him. The sunlight is representative of the new reality and knowledge that the freed prisoner is experiencing.
Slowly, his eyes adjust to the light of the sun. First he can only see shadows. Gradually he can see the reflections of people and things in water and then later see the people and things themselves. Eventually he is able to look at the stars and moon at night until finally he can look upon the sun itself (516a). Only after he can look straight at the sun "is he able to reason about it" and what it is.
Why '''quitters''' must be mocked and belittled; the possibility of suddenly having choices is intimidating to those who have not had to make them before...
...Return to the cave
Plato continues, saying that the freed prisoner would think that the real world was superior to the world he experienced in the cave; "he would bless himself for the change, and pity [the other prisoners]" and would want to bring his fellow cave dwellers out of the cave and into the sunlight (516c).
The returning prisoner, whose eyes have become acclimated to the light of the sun, would be blind when he re-enters the cave, just as he was when he was first exposed to the sun (516e). The prisoners, according to Socrates, would infer from the returning man's blindness that the journey out of the cave had harmed him and that they should not undertake a similar journey. Socrates concludes that the prisoners, if they were able, would therefore reach out and kill anyone who attempted to drag them out of the cave
So, SG as a version of 'The Matrix'. I hadn't thought of it in that way before...