why? is the question

Why? is the great question scientists like Dawkins cannot answer. They may have theories on how things come about, but why is there water in the clouds rather than Kool-Aid, or why trees are made of wood rather than a composite plastic, or why such things as rainbows have color and are translucent rather than black and white and opaque. And why are children small and grown-ups big rather than the other way around.
These are things that can never be solved in labratories.