What is reality anyway! It's nothing but a collective hunch.

The line treats “reality” not as an objective, self-evident given but as something socially negotiated—what a community tacitly agrees to treat as true. Calling it a “collective hunch” suggests that shared assumptions, habits of perception, and cultural consensus often stand in for certainty. In Wagner’s comic-philosophical mode, the joke carries an epistemological sting: what feels solid may be provisional, and what we call “real” may be closer to a widely reinforced intuition than to demonstrable fact. The phrasing also hints at skepticism toward authority and conventional wisdom, inviting readers to notice how belief and belonging can shape what counts as reality.