This is why 99% of people fail Engineering... ‍♂️

"Stop buying expensive machinery! ???????? While you guys are out here complaining about the economy, these geniuses literally built a helicopter for $0. If you don't understand the physics behind this, you clearly didn't pay attention in school. ???????? It’s called Mechanical Optimization. Why use a rotor when a motorcycle tire and some wood do the same thing? People will say it’s 'fake' or 'dangerous' just because they’re scared of real innovation. Honestly, if you’re still driving a car in 2026, you’re living in the past. ???????? Rate this 1-10... but only if you actually understand engineering! ????"