We may build a functioning, flapping wing, but what if the essence of flight is deeper, hidden within the cells or elsewhere?
Oh joy. One of these articles. And yes, I do think that sentence is indicative of the whole article, though it's more instantly-recognizable-as-stupid than most of it. The rest of the article takes a few seconds more.
Well, I guess we won't be "really" flying any time soon. I like my enhanced-gliding just fine, thanks.