Charles Darwin said himself in On the Origin of Species that

Last updated: 8/7/2022

Charles Darwin said himself in On the Origin of Species that the evolution of the eye "seems, I freely confess, absurd in the highest possible degree." However, he stated that the idea that the eye couldn't possibly have evolved "can hardly be considered real", thus showing at this early stage in evolutionary research that complex adaptations may stupify the layman but that they simply are the result of th natural selection acting on multiple factors stepwise over time to yield their complex structure.