Science is not the means by which we come to understand why physical laws and circumstances are the way they are. When we ask why - assuming the question is really 'why' and not 'how' - we are really asking to know the motive of some responsible agent capable of reason.

We can have fun speculating about why things are the way they are but don't look to science to provide any answers.

Motive may be inferred only when the stimuli in the agent's environment are open to view and the influences leading an agent to a particular action can be evaluated.

Carolyn Porco Quotes