I flew for the first time on a plane last week and I’ve seen planes take off at the airport. It looks crazy. But being on one is totally different like holy shit. The thing just FLIES. It just… Soars… Through the sky! Like whoa man. Wtf… It’s crazy. With how much these things weigh, it’s insane to me the thing can just go up and bam, there we are, we’re flying now. Like wow… Dude crazy.
I vaguely remember seeing a video that explained that how it’s usually explained is wrong. That’s what they’re probably referring to. But it wasn’t that we don’t actually know how it works, just that the common simplification is not technically correct (which happens often with these things).