People
Reality is that which, when you stop believing in it, doesn't go away.
— Philip K. Dick
Behind the line May contain spoilers.
Our reading
An editorial interpretation.
This defines reality by testing it against disbelief: whatever remains standing when you refuse to acknowledge it is the real thing. It's a playful jab at wishful thinking, suggesting that facts don't need our approval or attention to keep existing and shaping the world around us.
Context reviewed