> What if we just limited the science of birds to explaining how limb-flapping could produce levitation? Hmm yes. Birds are kind of like helicopters, it seems. Who’s to say that they are not basically one and the same? Moving on.
Well said. I'm gonna steal this explanation.
Also reminds me of the famous Carbonara quote: "if my grandmother had wheels, then she would be a bike" [1]
[1] https://www.youtube.com/watch?v=A-RfHC91Ewc