/sci/ - Science & Math

The usual response to "the eye is incredibly complex and coudn't have arose randomly" is that it gradually went from a simple structure that merely senses light into a more complex structure until eventually it became the sensory organ that we know today, this is fine and plausible.
But the question is, how did that intial simple structure appear? The organism must have, at a point in its evolution, went from not being able to sense light to being able sense light with no in between.
The problem is that even the most simple ocular organ is immensely complex, it is therefore immensely, and I do mean almost miraculous for a single generation to have mutated all the faculities needed for even simple vision.
The alternative that the organism would instead coincidentally evolve a structure bit by bit each generation that ultimately culminates in a sensory organ, might be even more unlikely. As it would have to do this with no evolutionary pressure (each iteration wouldn't add to its fitness), this is less likely than throwing a bunch of metal together in a scrapyard and expecting a camera to result.
The same could be said of hearing, smelling, thinking, etc