Okay. Correct me if I'm wrong. I admit to not knowing the rest of the quote, but since Darwin assumed that it was caused by Natural Selection in minuet stages over ever-changing moments in human biology, would that not mean that our eyes are still "evolving" into something more complex than now, or was that just Darwin speculating, and if yes that the eye is evidently ever-changing, would that not mean that anything determine as complex would have to evolve into something slightly more complex in the next generation?