We didn't build most things in nature. We didn't build hills for example, but we can pile earth and make a hill. Why are brains special?

Again, no progress is possible unless you define what consciousness is in your view. I shall have to halt any conversation otherwise.

>Why are brains special?

They are not special. You can pile brains too, if that is your thing..

> I shall have to halt any conversation otherwise.

Hey, it is easy. Just don't press the reply button...