There is no reason to believe new organs could not evolve. The eye evolved many times independently. One of the first "designs" used actual crystal lenses derived from calcite. Evolution is not a "random process". It uses randomness for variation, but it uses trial and error to perfect designs. This is how complex structures like the human brain could have evolved gradually from simpler forms. The universe seemed to have a local beginning in the Big Bang, but that doesn't mean that there wasn't anything before it, relative to our point of view. Here is how that could have happened: Please Register or Log in to view the hidden image! You use quotes from scientists as if science were just a matter of knowing who to trust. That is a misconception. Only in religion do you choose who to accept as trustworthy, and then take everything they say on faith. Science actually relies on evidence, and it doesn't matter who it comes from.