In “The Matrix”, Morpheus offers Neo a choice:
“This is your last chance. After this, there is no turning back. You take the blue pill—the story ends, you wake up in your bed and believe whatever you want to believe. You take the red pill—you stay in Wonderland, and I show you how deep the rabbit hole goes. Remember: all I’m offering is the truth. Nothing more.”
In popular culture, the “blue pill” has come to be associated with choosing to live within a happy and tranquil illusion. The “red pill” has come to be associated with making the braver but more difficult choice to live in reality, no matter how harsh that reality may turn out to be.
So here we have a comparison between two opposite approaches to life. Should we optimize for avoidance of pain or for truth?
Speaking of truth, in truth there are three primary colors, not two. So suppose there were a yellow pill? What would it signify?
Other than reality or illusion, what else is there? What could that third thing be?