Cylons made their own evolution and became more complex and strong. I've seen the first two episode. For eg. Cylon fighters don't have cockpits. This brings the question are fighters fully equipped robots ? May be. Answer is not given yet.
Not only bigger and stronger, I said wiser. This is the point that our engineers trying to get to. A.I. Artificial Intelligence, machines that can think, judge, make complex and continuously logical behaviour. Cylons are the most outfit. They have a logical reason. To end the humanity. And they make their plans reasonable. Use the weakness of mankind and get all the information from them by their hands.
It's not a war now. This is genocide and survivors have to continue their species. For ever what. The most strong instinct of the Human is now primer object. To SURVIVE
I thinks after all years passed over the event, these are the questions that must be still asking our selves. This boy can't answer it for us. But we can for us.