Just Look It Up (Obviously)

The classic professorial cop-out in its natural habitat! Nothing says "I don't want to explain this again" like directing students to a textbook that uses the word "obviously" more times than a teenager uses their phone in a day.

What's truly magical about math and physics textbooks is how they skip the most crucial steps with a casual "it is trivial to show" or "obviously" — as if the proof that took the author three whiteboards and a nervous breakdown is somehow instantly clear to a sleep-deprived undergrad surviving on ramen and desperation.

Pro tip: When a textbook says "obviously," prepare for at least two hours of confused scribbling and possibly an existential crisis about your career choices.