Physics textbooks be like: "For simplicity, let's just pretend air doesn't exist!" Then real-world physics bursts in like an unwelcome party crasher! 🌬️ Every physics student knows the sacred mantra: "Assume a frictionless vacuum in a perfect sphere." Sure, and while we're at it, let's assume my coffee doesn't get cold and my homework solves itself! The moment air resistance dares to exist, those beautiful equations turn into mathematical nightmares that would make Einstein weep. It's the classic physics betrayal - first they teach you the "ideal" world where everything falls at 9.8 m/s², then hit you with "SURPRISE! Nothing works like that in reality!" No wonder physics problems look at air resistance and say "You're nothing to me!"