This tee features the classic quantum mechanics joke: “Schrödinger’s Cat Walks Into a Bar – And Doesn’t,” paired with a split graphic of the infamous feline on both sides of a line — alive and chill on one side, mysteriously absent on the other. Whether you're a physics major, a science teacher, or just someone who enjoys a good thought experiment with a side of sarcasm, this shirt is the perfect paradox to wear proudly.