Two scientists, same periodic table, completely different worlds! Particle physicists get excited about individual elements like hydrogen and helium, obsessing over every subatomic quirk. Meanwhile, astrophysicists are just like "metals" and "not metals" because when you're studying entire galaxies, who has time for details? It's like one person reading every ingredient on a cereal box while the other just checks if it's breakfast food. The scientific equivalent of "I know 118 elements" vs "I know two types of stuff: shiny and not shiny enough."