The existential crisis of every physics student captured in four simple panels! First declaring "I'm a physicist" with the confidence of someone who just survived their first quantum mechanics exam. Then comes the crushing self-doubt that haunts every scientist from undergrad to tenure: "Are you good enough to call yourself that?"
But the punchline is what makes this painfully accurate - being a physicist isn't about brilliance, it's about being "too dumb to stop" banging your head against impossible problems until something finally makes sense. Newton didn't discover gravity because he was smart; he discovered it because he was too stubborn to give up when the math got weird.
The perfect encapsulation of scientific persistence: not genius, just pathological determination in the face of repeated failure. Graduate school in four panels!